PRAXIS M30-THRU BSA Bottom Bracket Cup Instruction Manual
- June 4, 2024
- PRAXIS
Table of Contents
M30-THRU BSA Bottom Bracket Cup
Instruction 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 for 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 your frame shell is clean.
- Before riding the bicycle, check that there is no play or looseness in the bottom bracket connection. Also, 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 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 the 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 from state to state. For more information on
warranty policy and instructions for completing a warranty claim, check out
the Full Warranty Policy found on our website. www.praxis-
works.com
Note: specifications are subject to change without notice. © JUNE 2021 by
Praxis Works, LLC
M30-THRU BBRight Road BB Compatibility and Spec
CRANKSET| Compatible with Praxis M30-THRU & other-brand cranks
FRAME SHELL| Only for PF BBRight frames
FRONT DERAILLEUR| Braze-on or Clamp-on
REQUIRED TOOLS
| • Press Tool | • Headset cup removal tool |
|---|---|
| • M30 BB Socket Tool | • Anti-Seize Compound |
| • M30 BB Wrench | • Waterproof Grease |
| • One 3/8” Drive Ratchet |
Included Parts
Number| Part| Qty
1| 30mm ID X 2mm Dust Cover| 1
2| LEFT/NON-DRIVE Cup 30mm ID Bearing| 1
3| Delrin PF Sleeve| 1
4| Orange Rubber Collet| 1
5| Black Plastic Compression Sleeve| 1
6| RIGHT/DRIVE Cup 30mm ID Bearing| 1
7| 30mm ID X 2mm Dust Cover| 1
8| 30mm ID X 3mm Dust Cover| 1
BB CUP PREPARATION
NON-DRIVE/LEFT CUP
- DO NOT remove the included PF sleeve on this cup. This sleeve must be on the BB for correct installation
- Grease both ends of the PF sleeve contact surfaces
DRIVE/RIGHT CUP
- Slide the Black Plastic Sleeve and then the Orange Rubber Collet onto the cup. This is critical to the function of your BB
- Apply a thin coating of anti-seize to the Right/Drive cup threads
- Apply a thin coating of grease to the outside of the Orange Rubber Collet and Black Plastic Sleeve
BOTTOM BRACKET INSTALLATION
- With a press tool, GENTLY press the Left/Non-Drive cup into the Left/Non-Drive side of the frame. The edge of the BB should just BARELY touch the bike frame
- Start threading the Right/Drive Cup in CLOCKWISE with your M30 BB tool. As it threads in, you will feel friction build as the Orange Rubber Collet expands inside the frame. This is normal. TURN Right/Drive Cup UNTIL IT STOPS, but do not fully tighten
With the 2nd M30 BB tool, hold the Left/Non-Drive Cup in place while you
tighten Drive cupful. The 2nd tool gives you leverage so you feel when the
Drive cup bottoms out on the Non-Drive cup
The Drive Cup has a machined stop and by design, it MUST be tightened until it
bottoms out on the Non-Drive cup. This precisely sets/stops the Collet
expansion
See the next page to find the correct Dust Covers for your crank. Lightly
grease the underside of Dust Covers and place them over bearings with Praxis
logos facing outward. Now you can install the crank
BB REMOVAL
- Unscrew the Right/Drive Cup COUNTER-CLOCKWISE and remove. Use one tool to hold the Left side for leverage, and the other to unscrew the Drive cup
- Once the Drive Cup is removed, slide a headset cup removal tool through from the drive side and it will catch the outside edge of the Non-Drive cup
- Carefully bracing the tool and frame, very gently hammer/tap the removal tool to push the Non-Drive Cup out of the frame
We recommend using a 1.5” headset cup removal tool (photo) as it has a wide stance
CRANK INSTALLATION
Please see CRANK instructions at www.praxiscycles.com/manuals
BB DUST COVER SETUP
REFERENCE – FRAME BB SPECS
CRANK SPINDLE MEASUREMENT CHECK!
The spindle must be 103mm or longer for Road 