PARK TOOL - BBT BOTTOM BRACKET SOCKETS 16-NOTCH Bottom brackets occasionally require removal for service, replacement, or upgrading. BBT-19.2 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® 16-notch Bafang® BBSH, BBS02 mid-drive e-bike motor lockrings. BBT-27.3 FEATURES Fits 16-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 46.4 mm, including: FSA® MegaEvo® Wheels Manufacturing™ T47, PF30 BBT-47-16 FEATURES Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 52–54 mm and a minor diameter (inside of notches) of 48.8 mm, including: C-Bear® T45 24mm, 30mm, and DUB®, T47-BB86 CeramicSpeed T47/86 Enduro® BB30/30a TorqTite (30mm and DUB® spindles),T47 (30mm and DUB® spindles) Kogel T47 SRAM® T47 DUB® White Industries™ PF30 Thread-Together, T47 BBT-49.2 FEATURES Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 39-40 mm and a minor diameter (inside of notches) of 37.6 mm, including: Shimano® XTR® BB93, Dura-Ace® BB9000, Dura-Ace® BB-R9100 Token® Shimano® STEPS square spindle e-bike systems including:E6000, E6002, E6050 Replacement for Shimano TL-FC38 tool. BBT-59.3 FEATURES Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 41–42 mm and a minor diameter (inside of notches) of 39 mm, including: Shimano® Ultegra® BBR60, Deore XT® MT-800 BBT-69.4 FEATURES Fits 16-notch tool fittings with a major diameter (outside of notches) of 44–45 mm and a minor diameter (inside of notches) of 42.7 mm, including: Shimano® BB80, BB5700, XT® BB70, BB51, and previous external bearing threaded bottom bracket cups Threaded bottom bracket cups from Campagnolo®, Chris King®, FSA® MegaExo®, Hope™, SRAM®/Truvativ® GXP®, Race Face® X-type, Surly®, Wheels®, Fulcrum®, and others Center lock disc brake rotor lockrings Bafang BBSH, BBS02 mid-drive motor lockrings
