TEKNO RC TKR9500 2.0 4×4 Short Course Truck Kit Instruction Manual

: June 13, 2024
: TEKNO

Table of Contents

TEKNO RC TKR9500 2.0 4×4 Short Course Truck Kit
Product Information
Warranty
Product Usage Instructions
Introduction
700
600
Setup Information
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

TEKNO RC TKR9500 2.0 4×4 Short Course Truck Kit

TEKNO-RC-TKR9500-2.0-4×4-Short-Course-Truck-Kit

Product Information

Product Name: Tekno RC SCT410 2.0 1/10th 4WD Competition Electric SC Kit
Manufacturer: Tekno RC
Website: www.teknorc.com
Social Media: www.facebook.com/teknorc
Age Recommendation: 14 years and older

Disclaimer: Tekno RC is not responsible or liable for any property or personal damage, loss, or injury incurred as a result of using this product. This kit is meant for use by persons 14 years of age or older and in the strict confines of a legally permitted RC track or facility.

Warnings: Always double-check that your radio gear is working properly before operating the vehicle. Never operate the vehicle indoors (unless the RC track is an indoor facility). Use caution while operating the vehicle so as not to collide with people who may be turn marshalling or who might otherwise not be aware that a fast-moving RC vehicle is in the vicinity.

Warranty

The parts included in this kit are free from defects. If you find a defective part in your kit, please contact Tekno RC at info@teknorc.com for assistance. Warranty claim will be void if any part is modified prior to contacting Tekno RC. Parts that may be broken during operation of the vehicle or otherwise are not covered by warranty.

Additional Equipment and Parts Needed:
Tools needed (not specified in the manual)

Product Usage Instructions

Step A-1:
Apply grease to the recess inside TKR5113B, where the o-ring is placed as well as the o-ring itself.

Step A-2:

Apply grease to the groove in the outdrive.
Use TKR1325 M3x14mm Flat Head Screw (x4) to assemble the parts.

Step A-3:

Fill the differential with #15,000 CST oil to 1mm below full. Do not overfill.
Use TKR5145B Differential Shims (6x17mm) and TKRBB08165 Ball Bearing (8x16x5) during assembly.

Step A-4:

Apply grease to the parts as indicated.
Use TKR1325 screws (x4) for assembly.

Bag B:

Front and Rear Differential assembly, refer to the manual for detailed instructions.

Note: For further spare/replacement and option parts, refer to the end of the instruction manual or visit Tekno RC’s website (www.teknorc.com) or their network of domestic and international dealers and distributors.

Introduction

Thank you for purchasing the Tekno RC SCT410 2.0 1/10th 4WD competition electric SC kit. We are always working on new projects, so please check our website regularly at www.teknorc.com
or visit us on Facebook at www.facebook.com/teknorc for all the latest news, parts, and kits.

Take your time! When you work your way through these building instructions, keep an eye out for the following important indicators below:
· RED TEXT – This indicates important areas of the build process that should be observed.

Thread Lock icons

Thread Lock

Thread lock is always used when a screw is inserted into any metal part. (Included with kit)

Grease icons Grease Grease is usually used on areas with movement and for sealing. (Included with kit)
· YOUTUBE – We also have many useful build videos on Youtube, so be sure to check these out! https://www.youtube.com/c/teknorc

Additional equipment and parts needed:
· 2+ channel radio transmitter and receiver · Body · Paint for body · 1/10th scale ESC and motor system · High torque steering servo (at least 250 oz/in) · 2s (2 cell, 7.4v) LiPo battery (at least 5000mAh) · 1/10th scale SCT tires, wheels & CA glue (or premounts) · MOD1 Pinion 16 tooth – 20 tooth (TKR4176 – TKR4180)
Tools needed:
· Hex drivers 1.5mm, 2.0mm, 2.5mm · Nut drivers 5.0mm (TKR1107, 5.5mm (TKR1108), 7.0mm (TKR1109), 8.0mm (TKR1110) · Hobby knife · Needle-nose pliers · Shock tool (TKR1115) OR adjustable (Crescent) wrench (for shock assembly) · 4mm turnbuckle wrench (TKR1103) – 5.5/7.0 two sided wrench (TKR1119)

Disclaimer: Tekno RC is not responsible or liable for any property or personal damage, loss, or injury incurred as a result of using this product. This kit is meant for use by persons 14 years of age or older and in the strict confines of
a legally permitted RC track or facility.
Warnings: Always double-check that your radio gear is working properly before operating vehicle. Never operate the vehicle indoors (unless the RC track is an indoor facility). Use caution while operating vehicle so as not to collide with people who may be turn marshalling or who might otherwise not be aware that a fast moving RC vehicle is in the vicinity.
Warranty: We warrant that the parts included in this kit are free from defects. If you find a defective part in your kit, please contact us at info@teknorc.com and we will help to resolve the issue. If you modify any part prior to contacting
us, the warranty claim will be void. We do not warranty parts that may be broken during operation of the vehicle or otherwise. Refer to the end of this instruction manual for a listing of spare/replacement and option parts. All spare parts and other info are available on our website (www.teknorc.com) and through our network of domestic and international dealers and distributors.

Bag A
Center Differential
(overview)

TKR5150B *TKR5150
(option)

TKRBB08165

TKR9114HD TKR9114 TKR5114XB (option)

TKRBB08165
TKR9114HD TKR9114
TKR5114XB (option)

TKR5145B *TKR5145C
(option)

TKR5144B

TKR1325 x4

TKR9532

TKR5150B TKR5150
(option)
TKR5149X TKR5149 *TKR5149A
(option)

TKR5143

TKR5113B TKR5113 TKR5113S (option)

Step A-1

TKR9114HD

Note: Apply grease to the recess inside TKR5113B, where the o-ring is placed as well as the o-ring itself.

Grease

TKR5150B TKR5150
(option) TKR5145B TKR5145C
(option)
TKR5144B
TKR5113B TKR5113 TKR5113S (option)

Step A-2
TKR5149X TKR5149 TKR5149A
(option)

TKR5150B *TKR5150
(option)

TKRBB08165
TKR9114HD TKR9114 TKR5114XB (option)

Grease
Note: Apply grease to the groove in the outdrive.

x4 TKR1325 M3x14mm Flat Head Screw
x2 TKR5144B Differential 0-rings

Step A-3
DiOffil
Fill Level

x2 TKR5145B Differential Shims (6x17mm)
x2 TKRBB08165 Ball Bearing (8x16x5)

Fill with #15,000 CST oil to 1mm below full
DO NOT OVER FILL

Step A-4
TKR1325 X 4pcs
Grease

Grease
TKRBB08165
TKR9532 TKR5144B
TKR5145B *TKR5145C
(option) TKR5143
3

Bag B
Front and Rear Differential
(overview)

TKR5150B *TKR5150
(option)

TKR5144B *TKR5144
(option)

TKR5150B *TKR5150
(option)

TKR5144B

TKR5143

TKR9114HD TKR9114 TKR5114XB (option)

TKR5145B *TKR5145C
(option)

TKR5113B TKR5113 TKR5113S (option)

TKRBB08165
TKR9114HD TKR9114 TKR5114XB (option)

TKR1325 x4

TKR5154M *TKR5151 (option)

TKR5145B *TKR5145C
(option)

TKR5149X TKR5149 TKR5149A
(option)

Step B-1
Repeat for rear diff

TKR9114HD

Note: Apply grease to the recess inside TKR9115B, where the o-ring is placed as well as the o-ring itself.

Grease

TKR5150B TKR5150
(option) TKR5145B TKR5145C
(option)
TKR5144B
TKR5113B TKR5113 TKR5113S (option)

Step B-2 Repeat for rear diff
TKR5149X TKR5149 TKR5149A
(option)

TKR5150B *TKR5150
(option)

TKRBB08165
TKR9114HD TKR9114 TKR5114XB (option)

Grease
Note: Apply grease to the groove in the outdrive.

x8 TKR1325 M3x14mm Flat Head Screw
x4 TKR5144B Differential 0-rings
x4 TKR5145B Differential Shims (6x17mm)
x4 TKRBB08165 Ball Bearing (8x16x5)

Step B-3
Repeat for rear diff

DiOffil

Fill Level

Fill with #15,000 CST oil FRONT Fill with #10,000 CST oil REAR
to 1mm below full DO NOT OVER FILL

Step B-4 Repeat for rear diff
TKR1325 X 4pcs
Grease

Grease
TKRBB08165
TKR5154M TKR5151 (option) TKR5144B
TKR5145B TKR5145C
(option)
TKR5143
4

Bag C Front Gearbox (overview)

TKR5075HD TKR1226
TKRBB05114

TKR1603

TKR9217

TKRBB05145
TKR5153M *TKR5152 (option)

TKR1212 TKR9217

TKR9568 *TKR9568C
(option)

TKR8727

TKR9017 TKR1301

TKR1301

TKR1222

TKR1525

TKR1525 x2pcs

Step C-1

TKR1603 TKR5075HD

Thread Lock
TKR9217

TKR1226 TKRBB05114

TKRBB05145

x2 TKR1212 M4 Lock Nut Flange
x2
TKR1222 13x16x.1mm Shim
x1 TKR1226 M5x7x.2mm Shim
x2 TKR1301 M2.5x6mm Flat Head Screw
x4 TKR1525 M3x14mm Cap Head Screw
x1 TKR1603 M5x4mm Set Screw
x1 TKRBB05114 Ball Bearing (5x11x4)
x1
TKRBB05145 Ball Bearing (5x14x5)

TKR5153M *TKR5152 (option) Step C-3
Step C-4
Note: Do not over-tighten.
TKR1301

Step C-2

Note: Use 15K diff here.

TKR1525 TKR9217

TKR1222
Note: TKR1222 may not be required. Check fitment and add if needed.

Grease
Note: Apply a small amount of black grease to the ring gear teeth.

TKR1212

TKR9568 *TKR9568C
(option)

TKR8727 TKR1525
TKR1525

Note: This is the standoff location.

TKR9017
TKR1301
5

Bag D Rear Gearbox (overview)

TKR1603

TKR9218

TKR9095 TKR1226

TKRBB05145
TKR5153M *TKR5152 (option)

TKRBB05145

TKR9017B TKR1301

TKR1301

TKR1222

TKR1212 TKR1525 x 2pcs

TKR9218

TKR9569 *TKR9569C
(option)

TKR1525 x 2pcs

TKR8727

Step D-1

TKR1603 TKR1226
TKRBB05145

Thread Lock

TKR9095

TKR9218

Step D-2
Note: Use 10K diff here.

TKR1525 TKR9218

x2 TKR1212 M4 Lock Nut Flange
x2 TKR1222 13x16x.1mm Shim
x1 TKR1226 M5x7x.2mm Shim
x2 TKR1301 M2.5x6mm Flat Head Screw
x4 TKR1525 M3x14mm Cap Head Screw
x1 TKR1603 M5x4mm Set Screw
x2 TKRBB05145 Ball Bearing (5x14x5)

TKRBB05145

TKR5153M *TKR5152 (option)

Step D-3

TKR1222
Note: TKR1222 may not be required. Check fitment and add if needed.

Grease
Note: Apply a small amount of black grease to the ring gear teeth.

TKR1212

TKR9569 *TKR9569C
(option)

Step D-4

TKR8727 TKR1525
TKR1525
Note: This is the standoff location.

TKR9017B

TKR1301

TKR1301 Note: Do not over-tighten.

6

Bag E
Rear End Assembly
Step E-1

Optional Sway Bars (sold separately)
TKR9593 – 2.2mm TKR9593 – 2.3mm TKR9593 – 2.4mm TKR9593 – 2.5mm TKR9594 – 2.6mm TKR9594 – 2.7mm TKR9594 – 2.8mm TKR9594 – 2.9mm *TKR9594 – 3.0mm
TKR9593 – 2.1mm

TKR9017B *TKR9090A
(option)

TKR1601

TKR9218

TKR9017B *TKR9090A
(option) TKR1601
TKR9218

Step E-2

Thread Lock
TKR1601

TKR5079A

Step E-3

TKR5049A
TKR5056 Note: Repeat this step for the other side.

x2 TKR1238 M4x10mm Droop Screw
x1 TKR1443 M4x10mm Button Head Screw

Step E-4

TKR1445

x2 TKR1445 M4x14mm Button Head Screw
x2 TKR1528 M3x18mm Cap Head Screw
x4 TKR1601 M3x4mm Set Screw

TKR1238 Note: Repeat this step for the other side.

TKR9561 TKR9163 TKR9163B *TKR9163C (option)

Note: THIS IS A PLACEHOLDER SCREW AND IS REPLACED BY A LONGER SCREW IN STEP M-5.
TKR1443
TKR9561 TKR9164 TKR9164B *TKR9164C
(option)
TKR9020

TKR1528

TKR9515
7

Bag F
Rear Hub
Step F-1

TKR9545

Thread Lock

TKRBB06135F

TKR5571M *TKR5571A
(Option)

TKR1609 Note: These screws
only need to be snug. Do not over-tighten.

TKRBB06135F

TKR9587

Note: Make two of these assemblies.

Step F-2

Wheelbase Shims
0mm 3mm

x4 TKR1201 M3 Locknut Black
x2 TKR1609 M3x3mm Set Screw
x4 TKRBB06135F Flanged Ball Bearing (6x13x5)

TKR1201

TKR9545

TKR9534 TKR1201

TKR9545

Note: Repeat on other side.

8

Bag F
Rear Camber Links

TKR5188B

Step F-3

Left

TKR9550

TKR5188B TKR5053A

TKR8052A

Build Tip: Use some grease or Chapstick on the threads to help prevent “pop- off” when
adjustments are being made.
Build Note: Hold the turnbuckle stationary with pliers and push the rod end hard onto the
turnbuckle while turning at the same time. Keep in mind that one end of the turnbuckle has normal threads and the other has reverse threads. Start the rod end straight and it will thread on straight.

Step F-4

Note: Repeat on other side.

TKR8052A

TKR5053A

Right
TKR9550 TKR5188B

TKR5188B

Note: Notch always goes on left side of vehicle.

Actual Size

35.50mm

TKR1201

TKR1211 TKR1221

x4 TKR1201 M3 Locknut Black
x2 TKR1211 M3 Lock Nut Flange Black
x2 TKR1221 M3x8mm Washer
x4 TKR1529 M3x20mm Cap Head Screw

TKR1529

1

4

2

5

3

6

9
Stock position is 1/C

Bag G
Front End Assembly
Step G-1

Optional Sway Bars (sold separately)
TKR9577 – 2.2mm TKR9577 – 2.3mm TKR9577 – 2.4mm TKR9577 – 2.5mm TKR9578 – 2.6mm TKR9578 – 2.7mm TKR9578 – 2.8mm TKR9578 – 2.9mm *TKR9578 – 3.0mm
TKR9577 – 2.1mm

TKR9017 *TKR9090A
(option)

TKR1601

TKR9217

Step G-2
Thread Lock

TKR1601

TKR5079A

Step G-3

TKR5049A
TKR5056 Note: Repeat this step for the other side.

TKR1445

TKR9017 TKR9090A
(option) TKR1601
TKR9217
TKR9561 TKR9162 *TKR9162B (option)

x2 TKR1238 M4x10mm Droop Screw
x1 TKR1443 M4x10mm Button Head Screw
x2 TKR1445 M4x14mm Button Head Screw
x2 TKR1528 M3x18mm Cap Head Screw
x4 TKR1601 M3x4mm Set Screw

Step G-4
Note: Repeat this step for the other side. TKR1238

Note: THIS IS A PLACEHOLDER SCREW AND IS REPLACED BY A LONGER SCREW IN STEP J-6.
TKR1443
TKR9561 TKR9161 TKR9161B (option)
TKR9020 TKR9516

TKR1528

10

Bag H
Front Spindle &
Carrier Assembly

Step H-1

TKR9541

TKRBB06135F

Thread Lock

TKR5571M *TKR5571A
(Option)

TKR1609 Note: These screws
only need to be snug. Do not over-tighten.

Step H-2

TKR9587
Note: Make two of these assemblies. TKR9543
Note: This pin is shorter.

TKR9542

TKR1613

Note: Make sure to use the (R) right side spindle with the (R) right side spindle carrier, and the (L) left side spindle with the (L) side spindle carrier.

Note: Make two of these assemblies.

TKR9543 Note: This pin is longer.

x4 TKR1201 M3 Locknut Black
x2 TKR1609 M3x3mm Set Screw
x4 TKR1613 M3x12mm Screw Pin
x4 TKRBB06135F Flanged Ball Bearing (6x13x5)

Step H-3
RIGHT SIDE

TKR9534 TKR1201

Note: Repeat on other side.

11

Bag H
Front Camber Links

Step

Left

H-4

TKR5187B TKR9523

TKR9059B

TKR5053A

TKR8052A

TKR5187B
Build Tip: Use some grease or Chapstick on the threads to help prevent “pop- off” when
adjustments are being made.
Build Note: Hold the turnbuckle stationary with pliers and push the rod end hard onto the
turnbuckle while turning at the same time. Keep in mind that one end of the turnbuckle has normal threads and the other has reverse threads. Start the rod end straight and it will thread on straight.

Step H-5

TKR1211

TKR8052A TKR9523

TKR5053A TKR9059B

Right

Front Camber Links

Note: Notch always goes on left side of vehicle.

Actual Size

24.50mm

Note: Repeat on other side.

TKR1201

TKR1221

x2 TKR1211 M3 Lock Nut Flange Black
x2 TKR1201 M3 Locknut Black
x4 TKR1221 M3x8mm Washer
x4 TKR1529 M3x20mm Cap Head Screw

TKR1529

4 5 6
Stock position is 3/A

12

Bag I
Steering Assembly
Step I-1

TKR5103

Note: Tighten nut all the way down, then back it off
2 full turns.

TKR9517
TKR5101X * OR TKR5231
TKR5231
Note: Can use 17mm wheel wrench here.
TKR5231
Note: Fit this o-ring inside the groove
of the nut above it.

Step I-2
TKR9517 *TKR5122
(option) TKRBB050825RS

TKRBB050825RS

Thread Lock

TKR1403

TKR9517 *TKR5122
(option) TKRBB050825RS
TKR9517
TKRBB050825RS TKR9521
TKR1403

Step I-3
x2 TKR1201 M3 Lock Nut Black
x4 TKR1221 M3x8mm Washer
x1 TKR1240 M3x18mm Shock Mnt Screw
x2 TKR1403 M3x10mm Button Head Screw
x2 TKR1529 M3x20mm Cap Head Screw
x4 TKRBB050825RS Ball Bearing (5x8x2.5)
x4 TKRBB06103 Ball Bearing (6x10x3)

Left
TKR9523 TKR5056

TKR5056 TKR8052A

TKR8052A

TKR5056

TKR8052A
TKR8052A TKR5056
TKR9523
Right

Note: Notch always goes on left side of vehicle.

Actual Size

Steering Links

Step I-4

TKRBB06103

Note: Repeat on other side.

TKR1201

TKR1221

TKR1221 TKR1529

28.75mm
(front of vehicle)
Stock Position (middle hole)

Note: Insert this screw now because it will be much harder to do later. It will not fall out. TKR1240

TKRBB06103

13

Bag J
Front End Assembly
Step J-1
TKR9508

TKR9102A

TKR9062B

TKR1324

Thread Lock TKR1343

TKR1344 TKR1344

Step J-2

Note: Use assembly from step I-4.

x2 TKR1324 M3x12mm Flat Head Screw
x2 TKR1343 M4x10mm Flat Head Screw
x2 TKR1344 M4x12mm Flat Head Screw
x2 TKR1443 M4x10mm Button Head Screw
x2 TKR1444 M4x12mm Button Head Screw
x1 TKR1447 M4x16mm Button Head Screw
x2 TKR1525 M3x14mm Cap Head Screw

Step J-3

TKR9630

TKR1525

TKR1444

TKR1447

Thread Lock

TKR1443

14

Bag J
Front/Rear Assembly
Step J-4

TKR1201
Step J-5

TKR1408 TKR1221

x2 TKR1201 M3 Locknut Black
x4 TKR1221 M3x8mm Washer
x2 TKR1346 M4x15mm Flat Head Screw
x2 TKR1350 M4x25mm Flat Head Screw
x2 TKR1408 M3x18mm Button Head Screw
x1 TKR1445 M4x14mm Button Head Screw
x2 TKR1528 M3x18mm Cap Head Screw

TKR9660 TKR1528
Step J-6
TKR1445 TKR1350 x 2pcs

Note: REMOVE THIS PLACEHOLDER SCREW AND DO NOT USE!!!
IT IS REPLACED BY A LONGER SCREW IN THE NEXT STEP BELOW.

TKR9660 TKR1346 x 2pcs

15

Bag K
Motor/Servo
Step K-1

Motor (not included) TKR1522

Thread Lock

1 Piece Motor Mount

TKR9512

Note: Laser etched numbers indicates what

MOD 1 pinion is to be used with each set

TKR9510
Note: TKR9511 can be used

TKR1346

TKR1522

of holes. Match the corresponding color for the second hole.

here if using any pinion below 16 tooth.

*Sold separately.

MOD 1 Gearing Recommendations

Note: Gearing recommendations in RED require the use of TKR9511 motor mount. This mount is not included and sold separately.
Note: These gearing recommendations are just starting points. Each user might have to adjust based on batteries used, individual preferences, and specific tracks.

Motor 550/3660
4-Pole
4600kv 4300kv 4000kv 3800kv 3500kv 3200kv 3200kv 3000kv 2800kv 2400kv

Battery
2 Cell 2 Cell 2 Cell 2 Cell 2 Cell 2 Cell 3 Cell 3 Cell 3 Cell 3 Cell

Small Track Large Track

(pinion)

(50-120 ft Straight) (120-180 ft Straight)

14 tooth

15 tooth

16 tooth

17 tooth

18 tooth

20 tooth

(not recommended)

13 tooth 14 tooth 16 tooth 18 tooth

14 tooth 16 tooth 17 tooth 19 tooth

Step K-2
x4 TKR1221 M3x8mm Washer
x1 TKR1346 M4x15mm Flat Head Screw
x2 TKR1522 M3x8mm Cap Head Screw
x4 TKR1525 M3x14mm Cap Head Screw

TKR1525 x2pcs TKR1221 x2pcs

TKR1525 x2pcs
TKR1221 x2pcs
Servo (not included)
Note: Use a servo with at least 250 in/oz torque.
TKR9525R

Note: Route servo wire through hole.

16

Bag K
Motor/Servo/ Mud Guards/ESC
Step K-3

TKR1401

TKR1401 Thread Lock

Note: Run the servo wire under the front chassis brace.

ESC Mounting Options

TKR1325
Step K-4

Mounting holes to chassis. Zip-Tie cutouts. Traxxas ESC holes. Tekin or HobbyWing ESC holes.

TKR9527

TKR1323
ESC (not included) Note: Use a heavy duty double sided tape to mount ESC. You can also use a zip-tie for additional security (not included).
Assembly from step K-1

x5 TKR1323 M3x10mm Flat Head Screw
x3 TKR1325 M3x14mm Flat Head Screw
x5 TKR1344 M4x12mm Flat Head Screw
x4 TKR1401 M3x6mm Button Head Screw

Thread Lock

TKR1323 TKR1344

Electronics Wiring Diagram
Note: Refer to this diagram during build step L-2.

TKR1344

17

Bag L
Battery Tray/
Servo Link

Step L-1
TKR9525L

Step L-2

TKR1401 TKR5126

TKR1601
Receiver (not included)

TKR1341 TKR9525L

TKR1401

TKR1341 TKR1401

TKR1401

Thread Lock

TKR9514 *TKR9019
(option)

Note: Install battery strap as show in the image. Do this before moving to the next step.

Note: Refer to the Wiring Diagram on the previous page during this step. Wires from the ESC and servo will be routed beneath the small wire guides in this step. It is important to keep all loose wires carefully routed to avoid being damaged by the center driveshaft.

TKR1325 Note: This screw goes up through the bottom of the chassis.
x2 TKR1211 M3 Lock Nut Flange Black
x2 TKR1221 M3x8mm Washer
x1 TKR1325 M3x14mm Flat Head Screw
x1 TKR1327 M3x16mm Flat Head Screw
x6 TKR1341 M4x6mm Flat Head Screw
x7 TKR1401 M3x6mm Button Head Screw
x1 TKR1601 M3x4mm Set Screw

Step L-3

Actual Size

Step L-4

TKR1211

TKR5058A
TKR5056 TKR5230 TKR5056

1mm
TKR5058A

TKR9553M TKR1327

TKR1221

Step L-5

TKR9527

TKR1401

Servo Screw (not included)

TKR1211 TKR1221

Note: Using TKR1240 screw that was previously installed in a prior step. Use caution to avoid pushing it out of place.

18

Bag M
Center Diff/ Rear End
Step M-1

TKR9191

Diff assembly TKR5144 from page 3.

TKR9512

Step M-2
x3 TKR1344 M4x12mm Flat Head Screw
x6 TKR1524 M3x12mm Cap Head Screw
x1 TKR1528 M3x18mm Cap Head Screw
x1 TKR5144 Differential 0-rings

TKR1344

TKR1524

TKR1524 TKR9512

Thread Lock
TKR1524 Set Screw
(not included)

Pinion Gear (not included)

Step M-3

TKR9630 TKR1528

TKR9062B

TKR9585 – Optional Center Brace
(all parts can also be purchased separately)
TKR5187B TKR1618

TKR5187B

TKR9585

TKR5053A

TKR1618 TKR5053A

19

Bag M
Rear End
Step M-4

TKR1444

TKR1525

Step M-5
x2 TKR1323 M3x10mm Flat Head Screw
x2 TKR1325 M3x14mm Flat Head Screw
x1 TKR1344 M4x12mm Flat Head Screw
x2 TKR1346 M4x15mm Flat Head Screw
x2 TKR1350 M4x25mm Flat Head Screw
x2 TKR1444 M4x12mm Button Head Screw
x1 TKR1445 M4x14mm Button Head Screw
x2 TKR1525 M3x14mm Cap Head Screw
x2 TKR1528 M3x18mm Cap Head Screw

TKR1344 TKR1325

TKR1323

Note: REMOVE THIS PLACEHOLDER SCREW AND DO NOT USE!!!
IT IS REPLACED BY A LONGER SCREW IN THE NEXT STEP BELOW.

TKR9660 TKR1528

Step M-6

TKR9660 TKR1346

TKR1445

TKR1350

20

Bag N
Front Shock Assembly
Step N-1
TKR6712 TKR6730 TKR6708 (Option)
TKR6709 TKR6730 TKR6708 (Option)
TKR6709 TKR6712 TKR6750
x2 TKR1211 M3 Lock Nut Flange Black
x2 TKR1240 M3x18mm Shock Mnt Screw
x2 TKR1248 M2x4mm Emulsion Screw
x2 TKR1265 M2x6mm Emulsion Screw
x2 TKR1266 M2.5x5x.5mm Washer
x2 TKR1604 M3x8mm Set Screw

Step N-2 TKR1266
Note: 1.2mm piston with writing up.

Thread Lock
TKR1265 Note: Do not over-tighten
TKR6705E TKR6731 TKR6732 TKR6735 TKR6736 TKR6737 TKR6739 *TKR6740 (Option)
TKR6762

Step N-3
Refer to filling instructions on page 23 during
this step.

Step N-4

s#h7oc0k0ocilst

TKR6780
TKR6712 *TKR6712A
(Option)

Note: Use green slime or oil on shock shaft threads AND O-rings to prevent tearing and leaking.
TKR6730
Step N-5

700

TKR6721

TKR6107 TKR6103 TKR6104 TKR6105 TKR6106 TKR6108 TKR6109 (Option)
32.00mm

TKR6140C

TKR1604

TKR5049A

Note: Screw rod end on until distance measures 32mm at full extension.

TKR6140C

Note: Shock is installed in
opening of the arm.

TKR1211

Note: Slot in spring perch should face
outside of car.

TKR1240 Note: Black screw
is RH threaded. It goes on the left
side of the car.
Silver screw is LH threaded. It goes on the right side of the car.

Stock shock position is second front inside hole on the tower and inside hole on the arm (2/B)

Shock length (droop) is 98mm Stock front ride height is 24mm

21

Bag O
Rear Shock Assembly
Step O-1
TKR6712 TKR6730 TKR6708 (Option)
TKR6709 TKR6730 TKR6708 (Option)
TKR6709 TKR6712 TKR6756

Step O-2
TKR1266
Note: 1.1mm piston with writing up.
Note: Use green slime or oil on shock shaft threads AND O-rings to prevent tearing and leaking.

Thread Lock
TKR1265 Note: Do not over-tighten
TKR6705E TKR6731 TKR6732 TKR6735 TKR6736 TKR6737 TKR6739 *TKR6740 (Option)
TKR6763

TKR6701 TKR5049A

TKR6722

Step O-3
Refer to filling instructions and oil recommendation
on page 23 during this step.

Step O-4
TKR6780 TKR6712 *TKR6712A (Option)

s#h6oc0k0ocilst

TKR6037 TKR6035 TKR6036 TKR6038 TKR6039 TKR6040 TKR6045
(Option)

600

37.00mm

TKR1604

TKR6730

Note: Screw rod end on until distance measures 37mm at full extension.

TKR6140C

x2 TKR1211 M3 Lock Nut Flange Black
x2 TKR1240 M3x18mm Shock Mnt Screw
x2 TKR1248 M2x4mm Emulsion Screw
x2 TKR1265 M2x6mm Emulsion Screw
x2 TKR1266 M2.5x5x.5mm Washer
x2 TKR1604 M3x8mm Set Screw

Step O-5

TKR1211

Note: Slot in spring perch should face
outside of car.

TKR1240 Note: Black screw
is RH threaded. It goes on the right
side of the car.
Silver screw is LH threaded. It goes on the left side of the car.

Stock shock position is second from inside hole on the tower and inside hole on the arm.

Shock length (droop) is 108mm Stock rear ride height is 24mm

22

Shock Filling Instructions
For both front and rear shocks

We’ve found it’s easiest to complete steps 1 & 2 on each shock before moving on to step 3. By the time you’ve finished step 2 on the last shock, the first one will be ready for step 3.
Step 1. Start by drilling out the emulsion hole if necessary. Use a 1/16th (or 1.6mm) drill bit to drill all the way through and clear any flashing created by this. Insert the four larger o-rings into the emulsion caps and set aside. Install the small o-rings onto the small emulsion screws (TKR1248).
Step 2. Fill shock with oil all the way to the top and pump the shock shaft up and down 3-5 times.
Step 3. Screw on the cap all the way tight (shock tool TKR1115 is helpful for holding the shock body). Be careful to not cross-thread the caps. Start by turning in the oposite direction before tightening.
Step 4. With the shock at about a 45* angle, push and hold the shock shaft to the top of the stroke. Oil should leak out during this process. If it does not, remove the shock cap and add more oil before continuing. Insert the prepared emulsion screw/seal. Tighten the screw until snug (do not over- tighten). Wipe off excess oil before moving on to step 5.
Step 5. Pump the shock shaft up and down about 20 times vigorously. This emulsifies the oil.
Step 6. With the shock shaft fully extended, remove the emulsion screw from the cap to do the final bleed.
Step 7. With the shock at about a 45° angle, push and hold the shock shaft to the top and insert the prepared emulsion screw/seal again. Oil will leak out during this process. Finish by tightening the screw until snug (do not over- tighten).

Step 1
TKR6712 1/16(tihf nDereildl eBdit)

Step 2-3

Step 4
Note: Do not over-tighten

Step 5

Step 6-7
Note: Do not over-tighten

TKR6714 TKR1248 TKR6714

Prepare caps by drilling emulsion hole
AND
inserting seals

FFiilll with oill,, PPump up and downn
3-5 times, TThhen screw on caapp

AND

Push smaller screws into small
o-rings

Push shaft up to bleed air out
THEN
Insert screw snug (do not over-tighten)

Pump up and down 230 times

Pull shaft down, remove screw
THEN
Push shaft up to bleed air, insert screw snug
(do not over-tighten)
23

Bag P
Body Mounts
Front/Rear Body Mounts

FRONT

REAR

Front/Rear Body Posts
Note: Lower the body posts as far as possible without having tire rubbing issues with the body during full uptravel.

F

R Note: When

ONR

ARE

using lower body post hole

T S

S positions, the bottom of the

post will need

to be trimmed

to clear the

camber links

during

uptravel.

Step P-1

TKR1525 TKR7798

TKR1525

TKR9598

TKR7798 TKR1525
Rear

TKR1525 TKR7798

TKR7798 TKR7798
Front
TKR1525

TKR1525

TKR7798 TKR9598

Note: You can use optional offset body mount posts, TKR5791 to adjust for various body holes. *Sold separately.

TKR1525 x6pcs

Step P-2

TKR1525 x6pcs
x20 TKR1525 M3x14mm Cap Head Screw
x4 TKR1409 M3x20mm Button Head Screw

TKR1409 x2pcs

TKR9583 Note: Repeat this step for both sides.

Optional Air Control Guards
(TKR9584 – NOT INCLUDED)
TKR1409
(from above)
TKR1402
(not included)

TKR1402
(not included)
TKR9584
(not included)

24

Bag P
Final Assembly
Step P-3

TKR9680 TKR9680 TKR1450

TKR9680

Step P-4

TKR1301
Step P-5

TKR1450 TKR9680

TKR1525

TKR1525 TKR1530

x4 TKR1214 M5 Lock Nut Flange
x2 TKR1301 M2.5x6mm Flat Head Screw
x2 TKR1450 M4x30mm Button Head Screw
x4 TKR1525 M3x14mm Cap Head Screw
x4 TKR1530 M3x25mm Cap Head Screw

TKR1525 TKR1530
Step P-6

TKR1525

TKR9680

Note: Wheels and tires (not included) Wheels: TKR2220 (Option)
TKR1214 TKR1215 (Option)

TKR1214 *TKR1215 (Option)
25

TKR9500 – SCT410 2.0 1/10th 4×4 Short Course Truck Kit

Parts List TKR5049A – Pivot Balls (6.8mm, no flng, sway bar, shck ends, almnm, 4pcs) TKR5053A – Pivot Balls (6.8mm, flanged, outside camber, aluminum, 4pcs) TKR5056 – Rod Ends (brake/steering/sway bay linkage, 16pcs) TKR5058A – Pivot Balls (5.8mm, no flange, brake/steering link, aluminum, 4pcs) TKR5075HD – Diff Coupler (HD, hardened steel) TKR5079A – Stabilizer Balls (6.8mm, sway bars, aluminum, 4pcs) TKR5101X – Servo Saver Spring (HD, EB48, SCT410, NB48) TKR5103 – Servo Saver Post (aluminum, gun metal ano) TKR5126 – Antenna tube (universal, w/ caps, 5pcs) TKR5144 – Differential O-Rings (6pcs) TKR5188B – Rod Ends (hard, 6.8mm, M4 thread, SCT/SL, 8pcs) TKR5230 – Steering Linkage (M3x18mm threaded rod, 10pcs) TKR5231 – Servo Saver Nut and Spring TKR5571M – Wheel Hexes (steel w/ set screw, lightened, 12mm, SCT410/SL) TKR7798 – Body Post Set (swivel, 4pcs) TKR8052A – Pivot Balls (6.8mm, camber, str links, almnm, centered, 4pcs) TKR9017 – Sway Bar and Bulkhead Acc (2.0) TKR9017B – Sway Bar and Bulkhead Acc (for -2/-4mm bulkheads) TKR9020 – Hinge Pins (inner, front/rear) TKR9062B – Chassis Brace Set (revised, front/rear/center, EB/ET48 2.0) TKR9095 – Universal Driveshaft (center, rear, 17mm, EB48 2.0) TKR9102A – Steering Posts (aluminum, gun metal ano) TKR9191 – Tapered Driveshaft (center, front, 7075, black ano, EB/ET48 2.0) TKR9217 – Gearbox (0mm offset, fits TKR5113/5113B diffs) TKR9218 – Gearbox (-4mm offset, fits TKR5113/5113B diffs) TKR9508 – Chassis (4mm, black ano, SCT410 2.0) TKR9510 – Motor Mount (CNC, 7075, SCT410 2.0) TKR9512 – Center Differential Mount and Cover (MT/SCT410 2.0) TKR9514 – Battery Strap (1x center, for standard 2s or shorty 4s packs, all 2.0) TKR9515 – Suspension Arms (rear, MT/SCT410 2.0) TKR9516 – Suspension Arms (front, MT/SCT410 2.0) TKR9517 – Bell Cranks and Top Plates (MT/SCT410 2.0) TKR9521 – Ackerman Plate (7075, MT/SCT410 2.0) TKR9523 – Turnbuckle (M4 thread, 55mm length, 4mm adjustment, 2pcs) TKR9525L – Mud Guard, Battery Tray, RX Box (left, SCT410 2.0) TKR9525R – Mud Guard, Servo Mount (right, SCT410 2.0) TKR9527 – ESC Tray, Radio Box Top (MT/SCT410 2.0) TKR9534 – Hinge Pins (outer, F/R, MT/SCT410, 2pcs) TKR9541 – Spindles (L/R, MT/SCT410 2.0) TKR9542 – Spindle Carriers (L/R, MT/SCT410 2.0) TKR9543 – Spindle Pin Set (short/long, MT/SCT410 2.0) TKR9545 – Rear Hubs (L/R, MT/SCT410 2.0) TKR9546 – Decal Sheet (SCT410 2.0) TKR9550 – Turnbuckle (M4 thread, 65mm length, 4mm adjustment, 2pcs) TKR9553M – Metal Servo Horn (25T spline) TKR9561 – Hinge Pin Brace Set (steel/composite, A/B/C/D, MT/SCT410 2.0) TKR9568 – Shock Tower (front, 7075, black ano, MT/SCT410 2.0) TKR9569 – Shock Tower (rear, 7075, black ano, MT/SCT410 2.0) TKR9577 – Sway Bar Set (FRONT, 2.1, 2.2, 2.3, 2.4, 2.5, MT/SCT410 2.0) TKR9583 – Nerf Bars (SCT410 2.0, L/R) TKR9587 – Universal Driveshaft Set (f/r, 87mm, MT/SCT410 2.0, 2 pcs) TKR9593 – Sway Bar Set (REAR, 2.1, 2.2, 2.3, 2.4, 2.5, MT/SCT410 2.0) TKR9598 – Body Mount Base Set (SCT410 2.0) TKR9630 – Tower Brace Set (F/R, MT/SCT410 2.0) TKR9660 – Skid Plate and Bumper Cushion (F/R, MT/SCT410 2.0) TKR9680 – Bumper Bar Set (F/R, MT/SCT410 2.0)
Bearings List TKRBB050825RS – Ball Bearing (5x8x2.5mm, rubber shielded, 4pcs) TKRBB05114 – Ball Bearing (5x11x4, 4pcs) TKRBB05145 – Ball Bearing (5x14x5, shielded, 4pcs) TKRBB06103 – Ball Bearing (6x10x3, 4pcs) TKRBB06135F – Ball Bearing (6x13x5, flanged, shielded, 4pcs) TKRBB08165 – Ball Bearing (8x16x5, 4pcs)
Shocks List TKR6140C – Locking Shock Rod End and Spring Perch Set TKR6705E – Shock Piston Set (5×1.1, 5×1.2, flat/flat, 13mm, 4pcs) TKR6709 – Shock X-rings (8pcs, EB410) TKR6712 – Shock/Cartridge Cap & Bushing Set (4pcs each, EB410) TKR6721 – Shock Boots (medium, for 13mm shocks, 2pcs) TKR6722 – Shock Boots (long, for 13mm shocks, 2pcs) TKR6730 – Shock Adjustment Collar and Guide Set (for 16mm springs, 13mm shocks) TKR6750 – Shock Body (44.5mm, aluminum, hard ano, 2pcs) TKR6756 – Shock Body (rear, aluminum, hard ano, ET410, 2pcs) TKR6762 – Shock Shafts (3.5mm OD, 52mm long, 3.5mm thread, 2pcs) TKR6763 – Shock Shafts (3.5mm OD, 57mm long, 3.5mm thread, 2pcs) TKR8727 – Shock Standoffs (2pcs, requires TKR8730) TKR8730 – Shock Cap Bushings (4pcs, requires TKR8727)
Differential List TKR5113B – Differential Case (f/c/r, composite, fits TKR5150/B, 3pcs) TKR5143 – Differential Seals (3pcs) TKR5144B – Differential O-Rings (6pcs) TKR5145B – Differential Shims (revised, 6x17mm, 6pcs) TKR5149X – Differential Cross Pins (composite, for 3 complete diffs) TKR5150B – Differential Gear Set (18/9T, for TKR5113/B, internal gears only) TKR5153M – Differential Ring Gear (40t, F/R, fits TKR5113/5113B, use with TKR5154M) TKR5154M – Diff Pinion (9t, F/R, use with TKR5153M) TKR9114HD – Differential Outdrives (HD, F/C/R, EB/ET48, MT/SCT410 2.0, 2pcs) TKR9532 – Spur Gear (41T, offset, composite, fits TKR5113/5113B)

Hardware List TKR1201 – M3 Locknuts (black, 10pcs) TKR1211 – M3 Locknuts (flanged, black, 10pcs) TKR1212 – M4 Locknuts (flanged, black, serrated, 10pcs) TKR1214 – M5 Locknuts (flanged, black, 10pcs) TKR1221 – M3x8mm Washer (black, 10pcs) TKR1222 – 13x16x.1mm Diff Shims (10pcs) TKR1226 – 5x7x.2mm shims (10pcs) TKR1235 – Body Clips (10pcs) TKR1238 – Droop Adjustment Screws (M4x10mm, 8pcs) TKR1240 – Lower Shock Mount Screws TKR1248 – M2x4mm Cap Head Screws (black, 10pcs) TKR1265 – M2x6mm Cap Head Screws (black, 10pcs) TKR1266 – M2x5.0x0.5mm Washer (black, 10pcs) TKR1301 – M2.5x6mm Flat Head Screws (black, 10pcs) TKR1323 – M3x10mm Flat Head Screws (black, 10pcs) TKR1324 – M3x12mm Flat Head Screws (black, 10pcs) TKR1325 – M3x14mm Flat Head Screws (black, 10pcs) TKR1327 – M3x16mm Flat Head Screws (black, 10pcs) TKR1341 – M4x6mm Flat Head Screws (black, 10pcs) TKR1343 – M4x10mm Flat Head Screws (black, 10pcs) TKR1344 – M4x12mm Flat Head Screws (black, 10pcs) TKR1346 – M4x15mm Flat Head Screws (black, 10pcs) TKR1350 – M4x25mm Flat Head Screws (black, 10pcs) TKR1401 – M3x6mm Button Head Screws (black, 10pcs) TKR1403 – M3x10mm Button Head Screws (black, 10pcs) TKR1408 – M3x18mm Button Head Screws (black, 10pcs) TKR1409 – M3x20mm Button Head Screws (black, 10pcs) TKR1443 – M4x10mm Button Head Screws (black, 10pcs) TKR1444 – M4x12mm Button Head Screws (black, 10pcs) TKR1445 – M4x14mm Button Head Screws (black, 10pcs) TKR1447 – M4x16mm Button Head Screws (black, 10pcs) TKR1450 – M4x30mm Button Head Screws (black, 10pcs) TKR1522 – M3x8mm Cap Head Screws (black, 10pcs) TKR1524 – M3x12mm Cap Head Screws (black, 10pcs) TKR1525 – M3x14mm Cap Head Screws (black, 10pcs) TKR1528 – M3x18mm Cap Head Screws (black, 10pcs) TKR1529 – M3x20mm Cap Head Screws (black, 10pcs) TKR1530 – M3x25mm Cap Head Screws (black, 10pcs) TKR1601 – M3x4mm Set Screws (black, 10pcs) TKR1603 – M5x4mm Set Screws (black, 10pcs) TKR1605 – M3x10mm Set Screws (black, 10pcs) TKR1609 – M3x3mm Set Screws (black, 10pcs) TKR1613 – M3x12mm Screw Pins (black, 10pcs)
Option Parts TKR1103 – Turnbuckle Wrench (4mm, 5mm, hardened steel) TKR1107 – XT Nut Driver (5.0mm , adjustable length, 4mm shank) TKR1108 – XT Nut Driver (5.5mm , adjustable length, 4mm shank) TKR1115 – Pivot Ball and Shock Multi- tool (aluminum) TKR1116 – 17mm Wheel Wrench, Shock Cap Tool TKR1119 – 5.5mm / 7.0mm Wrench (hardened steel) TKR1654X – 12mm Aluminum Wheel Hexes (aluminum, 4pcs) TKR2220 – TR606 SCT Wheel (black, SCT410 offset, 4pcs) TKR4176 – M5 Pinion Gear (16t, MOD1, 5mm bore, M5 set screw) TKR4177 – M5 Pinion Gear (17t, MOD1, 5mm bore, M5 set screw) TKR4178 – M5 Pinion Gear (18t, MOD1, 5mm bore, M5 set screw) TKR4179 – M5 Pinion Gear (19t, MOD1, 5mm bore, M5 set screw) TKR4180 – M5 Pinion Gear (20t, MOD1, 5mm bore, M5 set screw) TKR5113S – Differential Case (f/c/r, hardened steel, ET48/MT410) TKR5114XB – Differential Outdrives (front/rear, revised, lightened) TKR5122 – Steering Rack Bushings (aluminum, gun metal ano, 2pcs) TKR5145C – Differential Shims (keyed, 6x17mm, 6pcs) TKR5149 – Differential Cross Pins (6pcs, requires TKR5150 gears) TKR5149A – Differential Cross Pins (Aluminum, 6pcs, requires TKR5150 gears) TKR5150 – Differential Gear Set (6pcs, requires TKR5149 pins) TKR5151 – Differential Ring Gear (straight cut, CNC, 40t) TKR5152 – Diff Pinion (straight cut, 10T, CNC) TKR5253B – Aluminum Servo Horn (25t spline, M3 clamp, double hole arm) TKR5571A – Wheel Hexes (12mm, clamping, aluminum, 4pcs) TKR5791 – Body Mount Set (SCT410, front/rear) TKR6708 – Shock Cartridge Guide Set (CNC, Delrin, 8pcs, EB410/ET410) TKR6712A – Shock Caps (7075, emulsion, black ano, 2pcs) TKR9019 – Battery Straps (1x center, 1x side, EB/ET48 2.0) TKR9090A – Aluminum Sway Bar Collars (4pcs, EB/NB/ET/NT48 2.0) TKR9114 – Differential Outdrives (F/R NB/NT48 2.0, F/C/R EB/ET48 2.0, 2pcs) TKR9161B – Hinge Pin Brace (CNC, 7075, -1mm LRC, EB/NB48 2.1, A Block) TKR9162B – Hinge Pin Brace (CNC, 7075, -1mm LRC, EB/NB48 2.1, B Block) TKR9163B – Hinge Pin Brace Hinge Pin Brace (CNC, 7075, -1mm LRC, C Block) TKR9163C – Hinge Pin Brace (CNC, 7075, -2mm LRC, EB/NB48 2.1, C Block) TKR9164B – Hinge Pin Brace (CNC, 7075, -1mm LRC, EB/NB48 2.1, D Block) TKR9164C – Hinge Pin Brace (CNC, 7075, -2mm LRC, EB/NB48 2.1, D Block) TKR9568C – Shock Tower (front, carbon fiber, MT/SCT410 2.0) TKR9569C – Shock Tower (rear, carbon fiber, MT/SCT410 2.0) TKR9578 – Sway Bar Set (FRONT, 2.6, 2.7, 2.8, 2.9, 3.0, MT/SCT410 2.0) TKR9584 – Air Control Guards (SCT410 2.0, left, right) TKR9585 – Chassis/Shock Tower Brace (SCT410 2.0) TKR9594 – Sway Bar Set (REAR, 2.6, 2.7, 2.8, 2.9, 3.0, MT/SCT410 2.0)
26

Setup Information

The purpose of making adjustments is to make the car go faster around the track, or to make it more controllable, or both if possible. A car that’s easier to drive should produce lower, more consistent lap times. It will also inspire more confidence in the driver, which is always good when nerves start getting the best of you.

Before you start thinking about changing your car’s setup, consider these two things: First, is the car in perfect working order? Be sure that all of the suspension components operate freely without excessive play, and that the car isn’t tweaked. Binding and worn out parts will result in poor performance and inconsistent handling. Second, always consider tires before making other adjustments. Time spent trying to get the vehicle to work with the wrong tires mounted will be wasted time. Without the right tires, even a great setup won’t be a winning setup.

Ride Height
MEASUREMENT

Ride height is the distance from the bottom of the chassis to the running surface. Ride height should only be checked and adjusted when your vehicle is ready to run (i.e. with battery installed/body on). Ride height is the first adjustment to be made and should be set with a ride height measurement tool. Measurements should be taken from the flat parts of the chassis, front and rear. Be sure to measure the front ride height at a point before the kick up in the chassis starts. To measure ride height, first make sure the suspension is completely free, then simultaneously compress the front and rear all the way down and let the vehicle settle. Take your measurement from that position. Use the shock spring adjustment collars to raise or lower the ride height to your desired setting. 24mm front and 24mm rear is a good starting point.

Camber

Static camber affects the car’s side to side traction. More negative camber front and rear quickens rotation in corners. Less negative camber will make the vehicle easier to drive but you may give up some responsiveness (i.e. steering). To set your static camber have your vehicle at ride height (see above) and adjust the camber links until desired angle is achieved. Please note that a large adjustment of front camber will affect front toe and you may have to readjust the toe and then re-check front camber again. A good starting measurement for camber is 1-2 degrees in the front and 1.5-2.5 CAM degrees in the rear.

BER DROOP MEASUREMENT

Front Toe
OUT____IN

IN____OUT

Front toe is used to describe the angle in which the front wheels point when looking down at them from the top of a vehicle. You will always use some amount of toe out. Toe-out will affect how your vehicle enters and exits corners. More toe out will result in more off-power steering and less on-power steering and less toe out will have the opposite results. To set your front toe, have your vehicle at ride height (see above) and adjust the steering links until desired angle is achieved. Please note that a large adjustment of front toe will affect front camber and you may have to readjust the camber and then re-check front toe again. A good starting point is approximately 0.5-1 degree of toe out per side.

Ackermann Think of Ackermann as active toe when the

Effect

steering moves from left to right. More ackermann effect makes more toe out at

full turn. Less ackermann effect makes less

LESS

(front)

toe out at full turn. More Ackermann will be smoother and have less overall

steering. Less Ackermann

(rear)

will feel more direct and

have more overall steering.
MORE
A good starting point is forward on the

ackermann plate.

Bumpsteer
LESS bump out

MORE bump out

LESS bump out

Think of bump steer as active toe when the suspension compresses or rebounds. To adjust bump steer you have to change the angle of the steering link. This is accomplished by adding or removing washers under the ball stud on the steering spindles. Anytime you change camber link locations, front arm pills, front arm spacers, or Ackermann you will need to check and possibly adjust your bumpsteer. It’s best to start with zero bumpsteer or slight bump out.

ADJUST HERE

Droop

Droop is the measured amount of down travel in the suspension. It is measured from the shock mounting points while the vehicle is up on a stand allowing the arms to hang freely and is adjusted by turning the droop screw located in the suspension arms front/rear. This screw limits the suspension travel by providing a stopping point against the chassis. Left and right sides should always be equal, however the front and rear of the vehicle can have different values. Droop affects all aspects of chassis performance, including braking, acceleration, jumping, traction, and bump handling. A good starting droop measurement is 98mm front, and 108mm rear.

C Block Screws

The C block now has the option to be screwed down to the chassis. This affects the torsional flex of the car as well as rear traction, both on and off power. With the screws in, there will be less torsional flex and more rear grip on power. With the screws out there will be more torsional flex and more rear grip off power. In almost all cases, running with the screws in provides better consistency and faster lap times.

27

Setup Information

(continued)
Differentials

Front: Changing front diff oil affects overall steering response. Thinner can increase off-power steering but the vehicle may be twitchy and harder to drive. Thicker can increase on power steering and stability. We recommend 15k in the front diff. Center: Changing center diff oil affects the front-to-rear drive balance. Thicker will reduce off-power steering and on-power rear traction but increases on-power steering and acceleration if traction is available. Thinner will increase off-power steering and on-power rear traction but reduce on-power steering and acceleration. We recommend 15k in the center diff. Rear: Thinner rear diff oil increases off-power steering and reduces traction into a corner. It also reduces on-power steering and increases traction out of a corner. Going too thin will make your vehicle inconsistent, however. Thicker rear oil will have opposite effects, and once again, going too thick will make the vehicle inconsistent. We recommend 10k in the rear diff.

In addition to altering oils, there are other ways to affect differential action. First is by using different gear shims. TKR5145B behaves like a normal shim and is included in the kit. It will have less resistance (compared to TKR5145C) to both initial and continuous rotation. It will have a similar feel to thinner oil. This is beneficial on lower grip tracks. TKR5145C is a static shim and will have more resistance to both initial and continuous rotation. It will have a similar feel to thicker oil. This is beneficial on higher grip tracks. This can also be good on tracks that are very rough and/or broken up and you want to maintain forward drive through bumpy sections.The second option is by using gears of a different pitch. TKR5150 is a finer pitch and TKR5150B is a coarser pitch gear. Finer pitch gears will have less resistance to continuous rotation. Being finer, the power delivery is smoother than the coarser pitch gears. The finer pitch will allow for a heavier weight oil to be used which will allow a thick but smooth low speed diff action without excessive differential action at high speeds and high loads. The coarser pitch will more resistance to continuous rotation. This means that it will resist “diffng out” or “diff unloading”. Being coarser, the power delivery is not quite as smooth as the finer pitch gears. The coarser pitch will allow for a lighter weight oil to be used which will maintain low speed diff action without excessive differential action at high speeds and high loads. Third is by using different diff cases. TKR5113B will have similar characteristics of a static shim whereas TKR5113C will have the characteristics of the standard shim TKR5145B. In addition, TKR5113C has a slightly greater volume so it should provide improved consistency over a long run.

Rear Camber Links

You can alter both the length and the angle of the rear camber link. When altering the length, a longer camber link will have more roll, more traction and forward drive, and will react slower to direction changes. A shorter link will have less roll and feel stiffer, have less traction and forward drive, and will react more quickly to direction changes. Link length also affects camber change. Longer links will have less camber
change throughout the suspension travel whereas shorter links will have more. Because of this it is typical to run slightly more static camber with long links and slightly less with short links to keep the camber in the ideal range for the suspension travel. When altering the link angle (less angle by going up on the tower or more angle by going down), less angle will have more roll, more grip in the turns, and react slower to direction changes. More angle will have less roll, will lose grip more suddenly, and react more quickly to direction changes.

Front Camber Links

You can alter both the length and the angle of the camber link. When altering the length, a longer camber link will be more stable into turns, feel softer, have more overall traction and forward drive, and will react slower to direction changes. A shorter link feel stiffer, be more aggressive into turns, have more initial traction but less overall traction, and will react more quickly to direction changes. Unless you are on an extremely tight track the longer front link is recommended in all conditions. When altering the link angle (less angle by going up on the tower/down on the carrier or more angle by going down on the tower/up
on the carrier), going to less angle will have more roll, more overall grip in the turns, and reacts slower to direction changes. Going to more angle will have less roll, more initial grip, and react more quickly to direction changes. Link angle will also affect camber gain during compression. Less angled links will have less camber gain throughout the suspension travel whereas more angled links will have more. Because of this it is typical to run slightly more static camber with long links and slightly less with short links to keep the camber in the ideal range for the suspension travel.

Wheelbase Adjustments Changes to wheelbase can affect the
overall handling of your vehicle, since FORWARD it adjusts the distribution of weight on the wheels
as well as the angle of the driveshafts. Shortening the wheelbase at the rear will give you more steering into a turn and off power, less steering out of a turn and on power. Lengthening the wheelBACKWARD base at the rear will yield the opposite results. In general a longer wheelbase is better on open and/or bumpy tracks and a shorter wheelbase is better on tighter technical tracks.

LENGTH

Springs
WIRE DIA. Softer springs will increase traction through the turns by allowing more roll, slow down the responsiveness of the vehicle, and can be better in the bumps. Stiffer springs will increase corner speed if traction is available and will also tend to jump and land better. Once you find a set of springs you like you will typically only change them for tracks with dramatically different conditions.
COILS

Pistons

Pistons with smaller holes work well for

smoother tracks with large jumps and

pistons with larger holes work well for

rougher tracks with less jumps. Smaller

hole pistons will typically use thinner oil

than larger hole pistons. Shock oil is also

affected by the ambient temperature so a change in viscosity

might be necessary with a change of 5°C or ~10°F.

Sway Bars

Sway bars are used to adjust a vehicle’s

lateral grip by resisting chassis roll. A

thicker bar decreases roll more than a

thinner bar will. More roll means more

grip and less roll means less grip.

The front sway bar affects mainly off-power steering at corner entry. The rear sway bar affects mainly on-power steering and stability in mid-corner and at corner exit.

28

Maintenance:

Performing regular maintenance will greatly improve your on track consistency and also extend the life of your vehicle. Going through critical areas of the vehicle regularly will also allow you to find possible issues before they become a problem that may cost you a race. Follow the guidelines below for maximum performance.

Bearing Maintenance:
Bearings should always be smooth and free in order to preform their function. We recommend inspecting and cleaning each bearing on a regular basis. It will be necessary to break down parts of the vehicle in order to inspect them properly. The procedures below should be done every couple of weeks or prior to an important race.
1. Inspect the outer seals for any visible damage and check the rolling resistance of each bearing. 2. If any bearing does not spin freely, then take the following steps to clean them. 3. Spray the bearing with motor spray and spin it again to remove any debris trapped inside. Repeat if necessary. If
the bearing does not start to spin freely after cleaning, then they may need to be replaced. 4. Allow the clean bearing to dry or blow into the bearing with compressed air to speed up the drying process. 5. Oil each bearing with a proper bearing lubricant. One or two drops is enough.

Shock Maintenance:
When comparing the left and right shocks of the front end, they should feel identical. Same goes for the rears. The procedures below should be done every race day to make sure they are leak free and operating correctly.
1. After removing the shocks from the vehicle, remove the springs and inspect each shock for visible leaks (build up of debris at the bottom of the shock shaft or visible oil).
2. If the shock binds when pushing the shaft through its stroke, then the shaft may be bent and will need to be replaced. 3. If the shocks from left to right do not feel consistent when compared to each other, or have built up too much air
inside (feel empty when pushing the shaft through its stroke), then you will need to rebuild them following the steps outlined on page 19 of this manual.

Hinge Point & Drive Line Maintenance:
Checking the hinge points while the shocks are removed from the vehicle is the best time to inspect these parts. The other items to inspect are the camber links, steering links and drive shafts. Follow the steps below every couple of weeks in order to keep the vehicle preforming at the maximum level.
1. With the shocks off the vehicle, check the movement of the arms, hubs, and spindle carriers. They should move freely. If there is a bind, then the inner or outer hinge pin may be bent and would need to be replaced. The arms should not have any play when twisted or moved in any direction against the hinge points. If there is excessive slop present, then the arms or hubs may be worn and will need to be replaced.
2. Remove the camber links, steering links and servo link from the vehicle. Check the movement of the spindles to see if they turn freely. If they don’t, then check the kingpin shoulder screws to see if they are tightened down too far. Also, check for slop. If there is excessive slop present, then the spindle carriers may need to be replaced.
3. Check the steering rack to make sure it moves freely. If it binds, then the screws holding the Ackermann or the steering posts could be too tight. If they still bind, then check the bearings and follow the steps above to clean them.
4. After re-installing the camber links, steering links and servo link, check the movement of the rod ends on the ball studs. If they have excessive slop or are binding, then they may need to be replaced.
5. Check the drive shafts by rotating them. Look for any wobbles. If they are bent, replace them immediately. 6. With the drive shafts removed, check for slop in the CV area. If it is present, then reposition the CV pin to another
fresh hole, re-lubricate and install back into the vehicle.

Differential Maintenance:
Properly maintained differentials are essential for a smooth operating vehicle. Check all three diffs regularly to make sure they are filled and operating as designed.

1. Remove each diff and verify the differential action is happening and is smooth. If there is any notchy feel to them,

follow the steps below to rebuild them.

2. Open the diff and pour out the oil. Remove the gears and pins to release the outdrives, then remove the

seals. Inspect everything to make sure there are no damaged parts. If the seals are old or show any signs

of degradation, replace them immediately. Re-lubricate the seals and outdrives, then rebuild the diff following the steps on page 3 and 4.

29

Box Stock

Ambient Temp:

INDOOR OUTDOOR

SMALL

MEDIUM

LARGE

LOW MEDIUM HIGH

SMOOTH BUMPY RUTTED

LOOSE / LOAMY HARD PACKED

CLAY ASTRO

Ackerman/Bumpsteer/Servo Saver

DUSTY

DRY

WET

MUDDY

WASHERS: 1

WASHERS: 2

FULL TURNS 2 FROM FULLY TIGHT

RIDE HEIGHT: 24 CAMBER: -2°

CASTER BLOCK: 18° SWEEP: 0°

KICK UP: 10°

TOE: 2.0° out

SWAY BAR: 2.1mm DROOP:98mm

Differentials:

OPTION

FRONT CENTER REAR

Diff Oil

15k 15k 10k

(TKR5145B)

(TKR5145C)

OIL: 700 CST
PISTON: TKR6705E
REBOUND: 0%

BRAND: Kit
SPRING: TKR6107
BUILD: emul

(TKR9114) (TKR9114HD) (TKR51114XB) (TKR5150)

REAR HUB

RIDE HEIGHT: 24 ANTI-SQUAT: 1° SWAY BAR: 2.1mm

CAMBER: -2° TOE: 2.5° DROOP:108mm

(TKR5150B)
(TKR5113B) (TKR5113S) (TKR5113)

(TKR5149X)

OIL: 600 CST

BRAND: Kit

PISTON: TKR6705E SPRING: TKR6037

(TKR5149A) (TKR5149)

REBOUND: 0%

BUILD: emul

PINION/SPUR:

41

0mm 3mm

Optional Hinge Pin Braces:

“A” Block:

“B” Block:

TKR9161 (0mm) TKR9161B (-1mm)
“C” Block:
TKR9163B (-1mm) TKR9163C (-2mm)

TKR9162 (0mm) TKR9162B (-1mm)
“D” Block:
TKR9164B (-1mm) TKR9164C (-2mm)

TURNBUCKLE BRACE:

CENTER BRACE:

REAR BRACE:

BRAND / TREAD: COMPOUND: INSERT: WHEEL: NOTES:
Body/Body Mounts:
BODY MAKE:

ESC: BATTERY: MOTOR:
SERVO: 250 oz/in minimum

ORF N T S

RE A R S

General Warranty Information
Parts covered by our general warranty have a 50% MSRP replacement cost if bent, broken, or even worn out. See below for items covered by this warranty. Once the part(s) along with the completed warranty form is received and warranty eligibility is verified, we will send you a coupon code via e-mail that brings your price for the exact same replacement part to 50% of MSRP from our website (shipping not included).
Items covered by warranty:
Only individual vehicle parts are covered. For example, kits, engines, engine parts, tools, apparel, banners, and canopies are not covered by the general warranty. Also, discontinued parts, parts that are no longer in production or are not for sale on this website are not covered by the general warranty.
Conditions:
· Shipping to Tekno RC or to you will not be included in the coupon. You will be responsible for shipping the part, along with the completed warranty form to the address listed below. You will also be responsible for the shipping cost of the replacement part.
· You MUST send the part(s) to the address listed below. Pictures of the part are not sufficient. · A completed warranty form MUST be included with all parts sent. · The discount cannot exceed 50% from MSRP. If you already receive a discount (Team/Military), you will
receive a coupon that reduces your cost of the part to 50% of MSRP. · Coupons are valid for 14 days from the date of creation. If you do not purchase a replacement within this time,
the coupon offer and warranty are void. · This offer is ONLY valid at www.teknorc.com. · Please be sure all customs fees have been paid. Tekno RC will refuse receipt of a package with customs fees due. · Terms and conditions may change at any time without notice. Warranty policy may change at any time without
notice. All warranties are subject to review and may be refused or revoked at our sole discretion at any time without notice. If any conditions or instructions above are not met, the warranty will not be processed, and no notice is required from us that your warranty may not be processed.

Tekno RC

U S A

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Full Name: Address: City: Country:

State: Email:

Part #(s) in question:

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I N T

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