Park Tool Bottom Bracket Tool BBT-49.3 Size:NONE Leaves a sparkling shine on

Leaves a sparkling shine on all metal

rear rack and e-bike battery powered lights

Supplied with 4x Seal Patches

with a second-skin-like fit to support your quest for PR's and adventures on the road or gravel

Designed for use with dual Grip / Revolution shifters

Park Tool Bottom Bracket Tool BBT-49.3 Size:NONE Leaves a sparkling shine onFits 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 Shimano Dura Ace BB9000 Token Also fits chainring lockrings on Shimano STEPS square spindle e bike systems including: E6000 E6002 E6050 Replacement for Shimano TL FC38 tool