PRAXIS BB30 Road External Threaded Bottom Bracket Steel Bearing User Guide

: July 19, 2024
: PRAXIS

Table of Contents

BB30 Road External Threaded Bottom Bracket Steel Bearing
Specifications:
Product Usage Instructions:
Safety Information:
Tools Required:
BB Cup Preparation:
- Non-Drive/Left Cup:
- Drive/Right Cup:
Bottom Bracket Installation:
- FAQ:
Q: Can I install this product myself without a bike
Q: Where can I find warranty information for this product?

BB30 Road External Threaded Bottom Bracket Steel Bearing

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Specifications:

Model: M30-THRU
Compatibility: BB30/PF30
Road Frame Shell Width: 68mm
Mountain Frame Shell Width: 73mm

Product Usage Instructions:

Safety Information:

It is highly recommended to have the product installed by a
qualified bicycle technician due to the need for specific tools and
experience. Carefully read the service instructions of your crank
before installation to avoid riding problems and potential serious
injuries.

Tools Required:

Press tool
2qty socket wrenches
Grease
Anti-seize
Cup remover
2qty M30 tools

BB Cup Preparation:

Non-Drive/Left Cup:

Ensure Width Tolerance O-ring is on the Left/Non-Drive
Cup.
Apply a thin coating of anti-seize to both ends of the BB cup
contact surfaces and threads.

Drive/Right Cup:

Slide the Black Plastic Sleeve and Orange Rubber Collet onto
the cup.
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:

Gently press the Left/Non-Drive cup into the frame’s
Left/Non-Drive side using a press tool until the Width Tolerance
O-ring just barely touches the side of the frame.

FAQ:

Q: Can I install this product myself without a bike

technician?

A: While it is recommended to have a qualified technician
install the product due to specific tools and experience required,
if you have the necessary tools and feel confident, you can follow
the step-by-step instructions provided in the manual carefully.

Q: Where can I find warranty information for this product?

A: For detailed warranty information, visit our website at
www.praxis-works.com or refer to the Full Warranty Policy document
available online.

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M30-THRU
BB30/PF30
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.
· Ensure that your frame shell is clean (for BB30 frames, remove c-clips/bearings so frame shell is empty). · Before riding the bicycle, check that there is no play or looseness in the bottom bracket connection. Also, be sure to
retighten the crank arms 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 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 2024 by Praxis Works, LLC

Rev G

M30-THRU | BB30/PF30 BB Compatibility and Spec

CRANKSET

Compatible with Praxis M30-THRU & other-brand cranks

FRAME SHELL

68mm BB30/PF30 Road Frames | 73mm BB30/PF30 MTB Frames

FRONT DERAILLEUR

Braze-on, Clamp-on, or Direct Mount

REQUIRED TOOLS

· Bearing Press Tool · Two M30 BB Tools · Two 3/8″ Drive Ratchets

· Headset cup removal tool · Anti-Seize Compound · Waterproof Grease

Included Parts

Number

Part

Qty

1

30mm ID X 2mm Dust Cover

1

2

LEFT/NON-DRIVE Cup 30mm ID Bearing

1

3

LEFT/NON-DRIVE Width Tolerance O-Ring

1

4

Delrin PF Sleeve

1

5

Orange Rubber Collet

1

6

Black Plastic Compression Sleeve

1

7

RIGHT/DRIVE Cup 30mm ID Bearing

1

8

30mm ID X 2mm Dust Cover

1

9

30mm ID X 3mm Dust Cover

1

10

30mm ID X 6mm Dust Cover

1

2

3

4

56

7

8 9 10

LEFT/NON-DRIVE
30mm I.D

RIGHT/DRIVE
30mm I.D

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

TOOLS REQUIRED

PRESS

2qty SOCKET WRENCHES

GREASE

ANTI-SEIZE

CUP REMOVER

2qty M30 TOOLS

BB CUP PREPARATION
NON-DRIVE/LEFT CUP
1 Make sure Width Tolerance O-ring is on Left/Non-Drive Cup. This is required to accommodate frame BB width variances
2 FOR BB30 – Remove PF Sleeve (not used with BB30!). Apply thin coating of anti-seize to both ends of the BB cup contact surfaces and the threads
3 FOR PF30 – Slide PF Sleeve on. Grease both ends of the PF Sleeve contact surfaces. Then put anti-seize on the inner threads
WIDTH TOLERANCE O-RING

BB30
SETUP
(42mm D)

ANTI SEIZE BOTH END AND INNER THREADS

DRIVE/RIGHT CUP

1 Slide the Black Plastic Sleeve and then the Orange Rubber Collet onto the cup. This is critical to the function of your BB
2 Apply thin coating of anti-seize to the Right/Drive cup threads

3 Apply thin coating of grease to the outside of the Orange Rubber Collet and Black Plastic Sleeve

ORANGE RUBBER COLLET

BLACK PLASTIC SLEEVE

PF30
SETUP
(46mm D)

Slide Sleeve on for PF30
GREASE BOTH ENDS

ANTI-SEIZE THREADS

Next page INSTALLATION…

BOTTOM BRACKET INSTALLATION
1 With a press tool, GENTLY press the Left/Non-Drive cup into the frame’s Left /Non-Drive side until Width Tolerance O-ring just BARELY touches the side of frame

DO NOT COMPRESS WIDTH-TOLERANCE O-RING.

2 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
Now you must get your second BB tool…

ANTI SEIZE BOTH END AND INNER THREADS
Continued next page…

M30 TOOL #1

L

NO TURN / HOLD FIRM!

3 TURN Right/Drive Cup UNTIL IT STOPS.

R

With 2nd BB tool, hold Left/Non-Drive Cup in

place while you tighten Drive cup fully.

The 2nd tool gives you leverage so you feel when the Drive cup bottoms out on the Non-Drive cup.

M30 TOOL #2 TIGHTEN CLOCKWISE

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.

4 See next page for 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

LEFT/NON-DRIVE
30mm I.D.

BB DUST COVER SETUP
Only 1 cover per side!
RIGHT/DRIVE
30mm I.D.

REFERENCE FRAME BB SPECS

NEXT PAGE FOR DUST COVER GUIDE

W W W. P R A X I S C Y C L E S . C O M / M A N U A L S

BB DUST COVER GUIDE