SRAM BB30 Bottom Bracket Stock Item:SRAM Bottom Bracket Bearing Assembly For BB30 and lighter front shifting operation

and lighter front shifting operation for quick and intuitive shifting (and braking) in all situations

Waterproof to 33ft (10m)

35/36 and 40 mm

Caliper Only

The Shimano Tiagra line of road components has been completely re engineered and remastered with a more refined ergonomic design

SRAM BB30 Bottom Bracket Stock Item:SRAM Bottom Bracket Bearing Assembly For BB30 and lighter front shifting operationWHAT THE WORLD SPINS ON BB30 named for its required spindle size narrows Q factor, increases ankle clearance, and ups bearing durability. Along with a 30 mm spindle, it requires an oversized 68mm or 73mm bottom bracket shell and PressFit bearings held in place by snap rings. FEATURES 30mm alloy spindle Larger bearings for longer life 40x30x7 larger bearing size Weight: 56g (Ceramic) and 64g (Standard) ISO 4210 compliant. See Declaration of Conformity