PRAXIS M30 T47 E.B. Bottom Bracket Instruction Manual

: October 27, 2023
: PRAXIS

Table of Contents

M30 T47 E.B.
BOTTOM BRACKET INSTALLATION
- BB Frame and Cup Prep
BB DUST COVER SETUP
- REFERENCE FRAME BB SPECS
BB DUST COVER GUIDE
Documents / Resources

M30 T47 E.B.

ROAD 68MM | MTN 73MM

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.

Before installing new BB, ensure that the frame shell is clean and empty of all parts.
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 or deterioration 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.

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. © APRIL 2021 by Praxis Works, LLC

Rev H

M30 T47 External Bearing (E.B.) BB Compatibility and Spec

CRANKSET| Compatible with ALL Praxis M30 Based Cranks
FRAME SHELL| T47 68mm Road Frames | T47 73mm MTB Frames
FRONT DERAILLEUR| Braze-on, ST vv/Clamp, or Direct Mount

REQUIRED TOOLS

• One Praxis M30 BB Tool • Anti-Seize Compound
• 3/8″ Drive Torque Wrench • Waterproof Grease

Included Parts Below

Number| Part| Qty
1.| 28mm ID 2mm Dust Cover
(Stepped Cover)| 1
2.| Non-Drive/Left Cup
28mm ID Bearing| 1
3.| Sleeve|
4.| Drive/Right Cup
30mm ID Bearing| 1
5.| 30mm ID X 1mm Dust Cover| 1
6.| 30mm ID X 2mm Dust Cover| 1
7.| 30mm ID X 3mm Dust Cover| 1
8.| 30mm ID X 4mm Dust Cover| 1
9.| 30mm ID X 5mm Dust Cover| 1
10.| Wave Washer|

LEFT/NON-DRIVE RIGHT/DRIVE
28mm I.D. 30mm I.D.

Praxis Works, LLC 207 MCPHERSON ST. SUITE E. SANTA CRUZ, CA 95060 www.praxis- works.com

BOTTOM BRACKET INSTALLATION

BB Frame and Cup Prep

1 Add grease or anti-seize to the frame AND BB cup threads.

1. Apply grease or anti-seize to the frame & BB cup threads
2. Locate, read and follow the directional arrows on the cups
3. Thread the Right/Drive cup into the frame’s Right/Drive side
4. Thread the Left/Non-Drive cup with the attached moisture seal into
the frame’s Left/Non-Drive side

Torque both cups to 40Nm with Praxis M30 Tool

5. Finish by tightening both cups to 40Nm of torque with a Praxis M30 Tool
6. See next page to find correct Dust Covers for your crank. Lightly grease underside of Dust Covers and place them over bearings with Praxis logos facing outward. Now you can install the crank

CRANK INSTALLATION
Please see CRANK instructions at www.praxiscycles.com/manuals

BB DUST COVER SETUP

Only 1 cover per side!

LEFT/NON-DRIVE 28mm I.D.
A (Stepped Cover)
RIGHT/DRIVE 30mm I.D.
RIGHT/DRIVE
Wave Washer
NEXT PAGE FOR DUST COVER GUIDE

REFERENCE FRAME BB SPECS

BB DUST COVER GUIDE

“DM” = DIRECT MOUNT SPIDER (Removable Spider)
“NON-DM = NOT DIRECT MOUNT SPIDER (Pressed-On Spider)
“DM GR” = DIRECT MOUNT SPIDER – GRAVEL CRANK (Removeable Spider “GR” crank)

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