Feature(may vary by option.)

●Model Number:BB-RS501
●Series: TIAGRA 4700 Series
●Average Weight: 3.2 oz (93 g)
●Hollow Tech II Bottom Bracket | Thread Bottom Bracket Type
●Thread Bottom Bracket Shell Width (mm.) | 68


Description

Hollowtech II Bottom Bracket for Road ■Screw-in type. ■BB type: thread; Compatible axle: 24 mm; Ciel width: 68 mm (BC137/JIS/BSA), 70 mm (36x24/ITA) *This is the successor to the BB-RS500.