BBT-147-12 Steel Bottom Bracket Tool

More info: parktool.com/BBT-147-12

Constructed from precision-machined 4140 steel, the BBT-147-12 is a heavy duty tool for the removal and installation of select threaded bottom brackets with 12-notch tool fittings, including Chris King® ThreadFit™ T47 and ThreadFit™ 30.

The BBT-147-12 is designed to be compatible with any bottom bracket with the corresponding tool fitting, with an extra-deep body to accommodate extra-wide spindles and low-profile walls at the point of engagement for recessed lockrings.

The BBT-147-12 has three methods of tool engagement—a 3/8" drive fitting, a 1" hex fitting, and 36 mm wrench flats—allowing you to take on even the most seized bottom bracket cups.

For added stability, the BBT-147-12 features integrated threads for use with the Park Tool BBT-RS Bottom Bracket Tool Retaining System or GPS-1 Guide Pins (each sold separately).

Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 50–53 mm and a minor diameter (inside of notches) of 48.2 mm, including:

• BBInfinite® T47
• Chris King® ThreadFit™ 30
• Chris King® ThreadFit™ T47
• Chris King® ThreadFit™ T47 24x
• Chris King® ThreadFit™ T47 30
• Hambini T47
• Rotor® T47 External 30 mm
• Rotor® BBright®, BB30, BB386EVO, and PF30 thread-together

Tool specifications:
• 3/8" drive fitting
• 1" and 36 mm wrench flats
• 57.5 mm (2.264") outer diameter at point of engagement
• Internal clearance: 42 mm (1.654") depth (from tool face) x 30.44 mm (1.198") diameter
• Not rated for use with impact drivers

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Park Tool has been manufacturing bicycle specific tools since 1963. Based out of St. Paul Minnesota, we are the world's largest bicycle tool manufacturer. A long-term dedication to quality, innovation, and customer service has made Park Tool the first choice of professional and home bicycle mechanics around the world.

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