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Shimano SM-BB71 41B ROAD Press Fit 41 mm Bottom Brackets
optimized dirt resistance and compatibility with most frames
a better chain/sprocket interface
the undershirt is shaped to the body as if it were a second skin
SG-S500/S501
Shimano Cambio Xtr Rd-M970 v3 Shimano SM-BB71 41B ROAD PressShimano Gearbox Xtr Rd M970 XTR M970 9 speed gearbox SHIMANO XTR RD M970 GS, 9 SPEEDS. DIRECT PLUG BASSO NORMAL. For MTB , for sprockets 11 34 teeth, color: black silver Normal reverse spring system basso for smoother changeover. Capacity: 33 teeth. Compatible with Dual Control gearbox. Mega 9 compatible (for 9 speed systems) basso friction pins. Model Number: RD M970 GS Series: XTR Gearbox: Basso Normal Mounting Type: Drop Out Maximum pinion: 34T
