The Park Tool BBT-35-12 Bottom Bracket Tool, click to enlarge

The Park Tool BBT-35-12 Bottom Bracket Tool, click to enlarge

Overhead view of the BBT-35-12 Bottom Bracket Tool, displaying the 12 notches for bottom bracket fitment, click to enlarge

A hand fitting the BBT-35-12 Bottom Bracket Tool onto a black external bottom bracket cup on a bike frame, click to enlarge

The BBT-35-12 Bottom Bracket Tool tightening an external cup on a bike frame using the TW-6.2 torque wrench, click to enlarge

The BBT-35-12 Bottom Bracket Tool fitted to an external bottom bracket cup using the BBT-RS retaining system, click to enlarge

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Item # BBT-35-12

/ Tools / Crank & Bottom Bracket

Bottom Bracket Tool — 12-Notch

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including Praxis Works® M30. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive.

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BBT-35-12 Features

Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 48–50 mm and a minor diameter (inside of notches) of 46.3 mm, including Praxis Works® M30
3/8" drive fitting

Not designed for use with impact drivers or other power tools.

Product Fitment

Below is a filterable table of bottom bracket models the BBT-35-12 is compatible with. For a full list of tool compatibility, see our Bottom Bracket Tool Finder.


Praxis Works®	Threaded & Thread-Together	M30
Praxis Works®	Threaded	T47 Inboard

Parts & Accessories

BBT-RS

Bottom Bracket Tool Retaining System

BBT-35-12 Bottom Bracket Tool - 12-Notch 48mm

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