About Park Tool Bottom Bracket Tool 16 Notch 44mm OD (BBT-19.2)
Bottom brackets occasionally require removal for service, replacement, or upgrading. The Park Tool BBT-19.2 is compatible with some bottom brackets that feature a 16-notch tool fitting, including most Shimano® models with outboard bearings. Constructed from high-precision hardened chromoly steel, and can be driven using a wrench, socket, or 3/8" drive wrench.

Features

Fits 16-notch threaded bottom bracket tool fittings with a 44-45 mm major diameter (outside of notches) and 42.7 mm minor diameter (inside of notches), including:

Shimano® BB80, BB5700, XT BB70, BB51, and previous external bearing threaded cups

Campagnolo®

SRAM®/Truvativ® GXP

Chris King®

FSA MegaExo®

Hope®

Race Face® X-type

Surly®

Wheels Manufacturing™

Fulcrum®

Also fits 16-notch Bafang® BBSH, BBS02 mid-drive e-bike motor lockrings.

Features a 3/8" drive fitting and 1" wrench flats

NOTE: due to the shallow engagement of their tool fittings, the BBT-19.2 is not recommended for 16-notch disc brake rotor lockrings. Instead use the Park Tool BBT-9 or BBT-69.4.

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

About Park Tool
Park Tool are the world's largest bicycle tool manufacturer. Located in St. Paul Minnesota they have been designing and manufacturing bicycle specific tools since 1963. Their dedication to quality and innovation have gained them the reputation for producing the best bicycle tools in the world.