Shimano BB-R9100/BB-R9100I Dura-Ace Threaded Bottom Bracket 68/70mm Shell Width Size:70mm both in 50 mm length

both in 50 mm length

FRONT DERAILLEUR Shimano GRX RX400

Compatible with many Cycling Apps

For XDR 12-speed cassettes

Shimano BB-R9100/BB-R9100I Dura-Ace Threaded Bottom Bracket 68/70mm Shell Width Size:70mm both in 50 mm lengthSHIMANO DURA ACE Threaded Bottom Bracket 68 70 mm shell width BB R9100 SHIMANO DURA ACE Bottom Bracket Threaded HOLLOWTECH II 68 70 mm shell width With an advanced seal construction for smoother rotation and small ball bearings to minimize weight, the SHIMANO DURA ACE bottom bracket is offered in both pressfit and threaded options. FEATURES Bottom bracket with small ball bearings for lightweight Advanced seal construction for smoother rotation PRODUCT