PRAXIS M30-THRU BSA English Threaded BB User Manual
- June 12, 2024
- PRAXIS
Table of Contents
BSA English Threaded BB
FOR M30-THRU ROAD or MTN Cranks
User Manual
SAFETY INFORMATION
– READ BEFORE RIDE
Since specific tools and experience are necessary for proper installation,
it is recommended that the product be installed by a qualified bicycle
technician.
Read the service instructions of your crank carefully prior to installing the
parts. Loose, worn or damaged parts may cause riding problems and serious
injury may occur as a result. If installation and adjustments are not carried
out correctly, the chain may come off and this may cause you to fall off the
bicycle which could result in serious injury. Read these instructions
carefully, and keep them for later use.
- Ensure that the frame shell is clean.
- Before riding the bicycle, check that there is no play or looseness in the bottom bracket connection. Be sure to retighten the crankarms and pedals at periodic intervals.
- If you feel any looseness or ‘play’ in the bearings, the bottom bracket should be inspected/replaced.
- Be sure to read the instructions for your front chainrings/crank in conjunction with these service instructions.
- Do not wash the bottom bracket with high-pressure jets of water.
- For maximum performance it is required to remove and periodically inspect/clean your Praxis Works bottom bracket.
- Parts are not guaranteed against natural wear and tear resulting from normal use.
- For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional bicycle dealer or call Praxis Works.
- Praxis Works assumes no responsibility for damages or injury related to improperly installed components.
READ THE STEP-BY-STEP INSTRUCTIONS THAT ARE PROVIDED ON THE OTHER SIDE.
For the latest instructions and knowledge base updates:
https://praxiscycles.com/tech-docs/
WARRANTY
- Praxis Works Bottom Bracket products are warrantied to be free from defects in materials or workmanship for two years after original purchase. The warranty is non-transferable and valid to the original purchaser of the product only.
- Any attempt to modify the product in any way such as drilling, grinding or painting will void the warranty.
- This warranty is not valid for “abused” or neglected products, or products that are damaged by improper installation.
- If a defect is found, our entire liability and your sole remedy shall be, at our option, free repair or replacement of the Praxis product.
- Except as expressly required by law, Praxis Works shall not be held liable for any indirect, special, or consequential damages.
THIS WRITTEN EXPRESS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, IMPLIED OR
EXPRESSED. This warranty gives you specific legal rights, and you may also
have other rights which vary state to state. For more information on
warranty policy and instructions for completing a warranty claim, check out
the Full Warranty Policy found at our website. www.praxis-
works.com
Note: specifications are subject to change without notice.
© AUG 2022 by Praxis Works, LLC
Rev M
M30-THRU BSA | Compatibility and Spec
CRANKSET| Compatible Praxis M30-THRU & other-brand cranks (30mm DRIVE/30mm
NON-DRIVE)
FRAME SHELL| BSA 68mm Road Frames | BSA 68/73mm MTN Frames
REQUIRED TOOLS
- One Praxis M30 BB Tool
- 3/8” Drive Torque Wrench
- Anti-Seize Compound
- Waterproof Grease
Included Parts
| Number | Part | Qty |
|---|---|---|
| 1 | 30mm ID X 1mm Dust Cover | 1 |
| 2 | 30mm ID X 2mm Dust Cover | 1 |
| 3 | LEFT/NON-DRIVE Cup with 30mm ID Bearing | 1 |
| 4 | BB Cup Spacer for 68mm MTN ONLY | 1 |
| 5 | Sleeve (internal dust/moisture seal) | 1 |
| 6 | BB Cup Spacer for 68mm MTN ONLY | 1 |
| 7 | RIGHT/DRIVE Cup with 30mm ID Bearing | 1 |
| 8 | 30mm ID X 2mm Dust Cover | 1 |
| 9 | 30mm ID X 4mm Dust Cover | 1 |
| 10 | 30mm ID X 6mm Dust Cover | 1 |
TOOLS REQUIRED
BOTTOM BRACKET INSTALLATION
VIP: The included 2 Cup Spacers are ONLY used for MTN bike cranks on 68mm wide frames!
- Apply grease or anti-sieze to the frame & BB cup threads
- Locate, read and follow the directional arrows on the cups
- Thread the Right/Drive cup into the frame’s Right/Drive side
- Thread the Left/Non-Drive cup with the attached moisture seal into the frame’s Left/Non-Drive side
- Finish by tightening both cups to 40Nm of torque with a Praxis M30 Tool
- See next page to find correct Dust Covers for your crank. Lightly grease underside of Dust Covers and place them over bearings with logos facing outward. Now you can install your crank
CRANK INSTALLATION
Please see PRAXIS CRANK instructions at
www.praxiscycles.com/manuals
BB DUST COVER SETUP
BB DUST COVER GUIDE
ROAD M30-THRU| WIDTH| CRANK| LEFT 30MM COVER| LEFT CUP
SPACER| RIGHT CUP SPACER| RIGHT 30MM COVER
---|---|---|---|---|---|---
- BSA| 68| OTHER BRAND| 2mm| –| –| 2mm
T47 E.B.| 68| OTHER BRAND| 2mm| –| –| 2mm
T47 LB.| 86.| OTHER BRAND| 2mm| | | 2mm
BB86| 87.| OTHER BRAND| 2mm| | | 2mm
386EV0| 87.| OTHER BRAND| 2mm| | | 2mm
BB30/PF30| 68| OTHER BRAND| 2mm| | | 2mm
BBRight| 79| OTHER BRAND| 2mm| –| –| 2mm
MTN M30-THRU| WIDTH| CRANK| LEFT 30MM COVER| LEFT CUP SPACER| RIGHT CUP SPACER| RIGHT 30MM COVER
---|---|---|---|---|---|--- - BSA| 68| GEN1 LYFT
GEN2 LYFT
OTHER BRAND| Preload Ring Only
Preload Ring Only
2mm| 2.5
2.5
2.5| 2.5
2.5
2 5| 2mm
6mm
2mm
73| GEN1 LYFT
GEN2 LYFT
OTHER BRAND| Preload Ring Only
Preload Ring Only
2mm| | | 2mm
6mm
2mm
T47 E.B.| 73| GEN1 LYFT
GEN2LYFT
OTHR BRAND| Preload Ring Only
Preload Ring Only
2mm| | | 2mm
6mm
2mm
T47 I.B.| 90.| GEN1 LYFT
GEN2 LYFT
OTHER BRAND| Preload Ring Only
Preload Ring Only
2mm| | | 2mm
6mm
2mm
BB90| 90.| GEN1 LYFT
GEN2LYFT
OTHER BRAND| 2mm
1mm
2mm| | | 2mm
6mm
2mm
BB92| 92| GEN1 LYFT
GEN2LYFT
OTHER BRAND| Preload Ring Only
1mm
2mm| | | lmm
4mm
2mm
BB30/PF30| 73| GEN1 LYFT
GEN2 LYFT
OTHER BRAND| Preload Ring Only
Preload Ring Only
2mm| –| –| 2mm
6mm
2mm
Praxis Works, LLC
207 MCPHERSON ST. SUITE E.
SANTA CRUZ, CA 95060
www.praxis-works.com
WWW.PRAXISCYCLES.COM/MANUALS