Chromag Bikes S1 (24) Minor Threat V2 Instruction Manual
- September 6, 2024
- Chromag Bikes
Table of Contents
S1 (24) Minor Threat V2
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Specifications:
-
Frame Construction: 6066 Alloy
-
Rear Travel: 140mm
-
Shock Hardware: 37mm
-
Recommended Fork Travel: 140mm (S1), 150mm (S2), 150mm
(S3) -
Recommended Fork Offset: 40mm
-
Wheel Size: 24 (S1), 26 (S2), 27.5 (S3)
-
Rear Axle: M12 x 1.75mm (Boost 148)
-
BB Type: BSA 73mm Threaded
-
Headset: 44-56mm Semi Integrated
-
Linkage: 4-Bar Horst Link C1
-
Seatpost Size: 31.6mm
-
Seatclamp Size: 35mm
-
Bottle Cage Mount: Yes!
-
Brake Mount: I.S.
-
Origin: Taiwan
Product Usage Instructions:
Geometry:
The Minor Threat bike comes in three sizes: S1 (24″), S2 (26″),
and S3 (27.5″). Each size is designed to accommodate riders of
different heights. Refer to the provided geometry chart to select
the appropriate size based on your height.
Build Options:
The bike comes with various build options depending on the size
you choose. Components such as fork, shock, stem, handlebar,
crankset, brakes, wheels, tires, and more are specified for each
size variant (S1, S2, S3). Ensure the components match the selected
bike size for optimal performance.
Suspension Setup – Sag:
Before setting sag, make sure the dampers (rebound and
compression) are set to full open positions. Adjust the pressure as
needed and bounce on the bike to equalize the chambers. Stand in
your riding position and measure the sag. Repeat and adjust until
you achieve the desired sag level for optimal suspension
performance.
FAQ:
Q: Can I use different components than the ones specified in
the build options?
A: While we recommend using the specified components for best
performance, you can customize your bike with compatible parts as
long as they fit the frame and maintain proper functionality.
Q: How do I choose the right size for my child/adult?
A: Refer to the geometry chart provided for each size variant
(S1, S2, S3) to determine the suitable size based on the rider’s
height. Selecting the correct size ensures a comfortable and
efficient riding experience.
Q: What is the warranty on the frame?
A: For warranty information and registration, please visit
CHROMAGBIKES.COM/FRAMES to register your frame and learn more about
the warranty coverage.
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TECH PACK
PLEASE REGISTER YOUR FRAME AT:
CHROMAGBIKES.COM/FRAMES
27.5″ // METALLIC BLUE
26″ // BLACK ORANGE
27.5″ // METALLIC BLUE
3/17
The Minor Threat (now in it’s second iteration) brings some refinement and evolution to the ever-popular kid’s machine, which also happened to be the first full suspension bike we ever launched.
The MTV2 now uses a seat tube pivoting rocker link, which brings it more in
line with our other suspended bikes like the Darco and Lowdown. The rocker
design allows us to tune the progressivity for older (heavier) riders who are
bigger, stronger and are pushing harder.
It also creates enough room in the front triangle to house a water bottle,
even on the smallest 24″ model.
The most notable improvements on the V2 are the new 27.5″ (S3) size and ample room for a bottle on all models.
We spec’d the Minor Threat just as we would for the adults. Rock Shox suspension, Maxxis tires and Eagle drivetrains are some of the highlights. Not to mention, we decked it out with Chromag kit for the finishing touches.
Perhaps most excitingly, we’ve now introduced a 27.5″ option into the mix which not only keeps some of the taller kids happy, but maybe even some of the shorter adults among us as well.
27.5″ // METALLIC BLUE
GEOMETRY
5/17
GEO
Wheel Size Typical Rider Height Units Effective Top Tube Seat Tube Reach Stack
Standover Wheelbase BB Height Front Center Chainstay Head Tube Max. Seatpost
Insertion Head Tube Angle Effective Seat Tube Angle
S1 (24″)
24″ 4’2″ – 4’8″ 127-142cm
Inches
mm
19.1 12.0 14.17 21.50 23.9 42.40 12.17
486 305 360 546 606 1077 309
26.26
667
16.14
410
3.74
95
8.27
210
S2 (26″)
26″
4’7″ – 5’2″ 140-157cm
Inches
mm
20.9
532
13.0
330
15.75
400
22.48
571
25.8
655
44.88
1140
13.11
333
28.35
720
16.54
420
3.74
95
9.25
235
64°
77°
S3 (27.5″)
27.5″
5’1″ – 5’5″ 155-165cm
Inches
mm
21.7 14.0 16.54 22.48 27.2 46.06 13.54 29.13 4.00 3.74 10.24
552 355 420 571 690 1170 344 740 430 95 260
SIZING
SPECS & SIZING
7/17
SPECS
Frame Construction Rear Travel Shock Hardware Reccomended Fork Travel
Recommended Fork Offset Wheel Size Rear Axle BB Type Headset Linkage Hanger
Seatpost Size Seatclamp Size Bottle Cage Mount Brake Mount Origin
S1 (24″) S2 (26″) S3 (27.5″)
140mm 37mm
24″
6066 Alloy 140mm
165x45mm, 30x8mm Trunion 150mm 40mm
26″ 184mm M12 x 1.75mm (Boost 148)
BSA 73mm Threaded
27.5″
44-56mm Semi Integrated 4-Bar Horst Link C1
31.6mm
35mm
Yes!
I.S.
Taiwan
26″ // BLACK ORANGE
BUILD OPTIONS
9/17
BUILD
Fork Shock Stem Bar Headset Crankset Brakes Rotor Shifter Cassette Chain
Derailleur BB Wheels Tires Seatpost Seatclamp Saddle Grips Pedals
S1 (24″)
S2 (26″)
S3 (27.5″)
Rock Shox Reba 26″ / 140mm / 15 x 110mm
Rock Shox Lyrik 27.5″ / 150mm / 15 x 110mm
Rock Shox Deluxe Select / 165 x 45mm
Chromag HiFi BSX / 31mm
Chromag Vanguard / 720mm / 31.8mm
Cane Creek 40 / 44-56
SRAM X1 Eagle DUB / 155mm / 30t
SRAM X1 Eagle DUB / 165mm / 30t
SRAM Code RSC
Centerline / 180mm
SRAM NX Eagle / MMX
SRAM NX Eagle / 11-50t
SRAM NX Eagle
SRAM GX Eagle
Rock Shox DUB / 73mm BSA / Ø30mm
Chromag Ally / R4
Maxxis Minion / DHF-DHR II
Chromag Bassix / 300mm / 31.6mm
Chromag QR
Chromag Overture
Chromag Format
Chromag Synth
SUSPENSION SETUP – SAG
10/17
Suspension sag is the percentage of full travel that the suspension compresses
when the rider, including gear, is on the bicycle in a normal riding position.
Setting the correct sag allows the suspension to perform effectively. More sag
(less pressure) increases bump sensitivity and suspension movement. More bump
sensitivity results in a smoother ride and is typically preferred on longer
travel bicycles. Less sag (more pressure) decreases bump sensitivity and
suspension movement. Less bump sensitivity results in a more firm, efficient
ride and is typically preferred on shorter travel bicycles. On RockShox
suspension, the sag indication is marked on the stanchion making it very easy
to check. If your suspension is from another manufacturer then you will need
to measure the sag against the full stroke to calculate the percentage of sag.
Before setting sag, set the dampers (rebound and compression) to the full open
positions. Rotate the adjusters counter-clockwise until they stop. After
changing pressure, bounce on the bike at least 5 times to make sure the
positive and negative chambers are equalized. Stand in your neutral riding
position and have your butler read the amount of sag. Repeat and adjust as
needed to achieve desired sag.
For more information visit trailhead.rockshox.com or your suspension
manufacturer’s website. It should go without saying that suspension setup is
an iterative and delicate process. If you are having trouble, or if any of the
above seems like a foreign language, please visit your local bike shop for
help with setup!
For your Minor Threat, we recommend:
· Fork: 15 – 20% of sag (22.5 – 30mm for 150mm travel) · Shock: 25 – 32% of
sag (9 – 14.4mm for 45mm stroke)
25 – 32%
15 – 20%
BUILDING YOUR BIKE
11/17
Whether you get your bike in a box, or roll it out the front door here at
Chromag HQ, you can rest assured your bike has been pored over with pride, and
built with the utmost attention to detail by one of our extremely talented
mechanics. Threads are chased, seat tubes are reamed, head tubes are honed,
fits are checked and checked again, all to make sure when you get your bike,
everything is absolutely dialed.
If we shipped your bicycle, the only difference is that once built, we
disassembled some of the parts to fit it in the box. In terms of assembly,
here’s what’s been done, and what needs to be done if you’re getting your
Chromag shipped.
What has been done:
9 Chain length adjusted. 9 Gears adjusted. 9 Brakes set up and bled. 9
Handlebar tightened to 6Nm. 9 Grips tight on handlebar. 9 Crankset tight,
bottom bracket tight/adjusted. 9 Saddle and seatpost tight. 9 Seatpost greased
*make sure to re-grease every 6 months! 9 Tire sealant installed. 9 Cassette
tight.
What needs to be done: Inflate tires to desired pressure. Install brake
rotors, tightening bolts to 6.2Nm. Attach derailleur to frame, tightening to
9Nm making sure that the B-tension tab rests properly against the derailleur
hanger stop. Grease headset bearings, install fork and handlebar, positioning
the headset spacers above or below the stem according to rider fit. Align
handlebar stem, preload headset and tighten stem pinch bolts to 8Nm. Install
wheels, tighten axles. Install chain with quick link. Grease pedal threads and
install pedals using pedal washers supplied. Adjust brakes, shifters, saddle
position and height for personal preference. Set up suspension. Bed-in brakes.
(Roll down a gentle gradient dragging one brake at a time. Avoid locking them
up.) Go ride!
Notes: We recommend using an experienced and qualified mechanic to build your
bike. Things bed-in over time, be sure to perform a bolt check after your
first ride. (It’s good practice to perform a bolt check before every ride.)
MINOR THREAT V2 FULL BOM
Ref. Description
1 LOWER SHOCK SECURING SCREW 2 LOWER SHOCK RETAINING PIN SS 3 CLEVIS 1MM
SPACER 4 6801 BEARING 5 CLEVIS PIVOT 2MM SPACER 6 ROCKER LINK MTV2 7 TRUNNION
SPACER 8 TRUNNION BOLT 9 37802 BEARING 10 ROCKER MAIN AXLE NUT 11 ALLOY 3MM
SPACER 12 ROCKER PIVOT AXLE 13 CLEVIS PIVOT AXLE 14 MAIN PIVOT AXLE 15 6902V
BEARING 17 HORST OUTER SPACER 18 698V BEARING 19 HORST PIVOT FEMALE BOLT 20
HORST PIVOT RETAINER MALE BOLT 24 6901 BEARING 40 MAIN PIVOT AXLE RETAINER
EXPLODED VIEW
Qty. In Frame 1 1 4 4 2 1 2 2 1 1 2 1 2 1 1 2 4 2 2 4 1
8
10 24
24 7
13
11
3
3
6
7 24 8
11 24 12
3 3 13
4 5 4
14
15
20 17 18 18 19
4 5 4
1 2
9 40
19 18 18 17 20
12/17
14 15
APPLY GREASE TO UNTHREADED AREA
MAIN PIVOT LAYOUT
13/17
9 40 TORQUE TO 17Nm
APPLY MID-STRENGTH THREADLOCKER (BLUE LOCTITE 243)
8
10 24
24 7
13
11
3
3
ROCKER LAYOUT
14/17
6
7 24 8
11 24 12
3 3 13
HORST LINK LAYOUT
15/17
APPLY GREASE TO UNTHREADED AREA
19 18 18 17 20
APPLY MID-STRENGTH THREADLOCKER (BLUE LOCTITE 243)
TORQUE TO 7Nm
TORQUE SPECS
16/17
12Nm
15Nm 17Nm
7Nm
12Nm 10Nm