PRAXIS M35 BOTTOM BRACKET TOOL 36 NOTCH PARK TOOL BBT-35-36

The Park Tool BBT-35-36 is the 36-notch bottom bracket tool dedicated to M35 threaded bottom brackets, such as Praxis Works M35 and Box Two Oversized M35. It installs and removes cups with a very fine notch profile precisely, where a generic tool cannot get a proper grip and risks damaging the edge of the cup.

It is CNC-machined from solid aluminium and made in-house by Park Tool, then anodized so you can spot it instantly on the tool board. The 36 notches spread the force around the entire circumference of the cup: the major diameter of the fitting is 51-53 mm and the minor diameter is 50.7 mm. The 3/8" square drive accepts ratchets and torque wrenches, so final tightening can be done to the torque specified by the bottom bracket manufacturer.

Where to use the 36-notch M35 bottom bracket tool

• Praxis Works M35 bottom brackets, both threaded and thread-together
• Box Two Oversized M35 thread-together bottom brackets
• Installing a new bottom bracket with controlled torque using a torque wrench
• Removal for service, shell cleaning or bottom bracket replacement

Why choose Park Tool BBT-35-36

• 36-notch profile designed for M35 cups, with full, centred engagement
• CNC-machined aluminium: light, precise and made to tight tolerances
• 3/8" drive compatible with ratchets and torque wrenches
• Coloured anodizing to identify the right tool among the many BBT models
• Works with the Park Tool BBT-RS retaining system and guide pins, sold separately, to keep the tool engaged with the cup

The tool is not designed for impact drivers or other power tools: it is meant for hand use. If your workshop sees frames with Praxis or Box M35 bottom brackets, the Park Tool BBT-35-36 M35 36-notch bottom bracket tool is the dedicated tool that avoids improvised solutions and marked cups.