notably improving sensitivity and overall ride quality

Pros: Quality CNC machined aluminium construction with high-quality finishes so it looks great

Illuminate the track at night with its included handlebar mount or purchase the optional helmet mount to use it on the trails

12 splines that are approximately 23

Comes with 1 x Co-polymer insert and 2 x M3 screws to fix it

Park BBT-49.2 39mm OD External BB Tool - Black PDP|PLP|Brake Rotor Type notably improving sensitivity and overallThe BBT 49. 2 is designed to fit 16 notch external BBs. It is made from CNC machined alloy so you know its strong. It has been updated to ensure a good fit on modern BBs and to allow it to fit Shimano STEPS square drive motors. Fits: 3 8 torque wrench 16 notch 39mm OD cups Fits Shimano XTR BB91 3 4, Dura Ace R9100, Shimano STEPS Hollowtech II e bike motor lockrings, and Token BB's