Shimano BB-UN300 Square Spindle 68mm Bottom Brackets
Features:
Fits JIS square-taper cranksets
Crankarm fixing bolts sold separately
Hollow spindle
Specifications: Frame Interface: BSA/English Threaded Spindle Interface: Square Taper JIS Bottom Bracket Shell ID: 1.37 Shell Width: 68mm Spindle Lengths: 122.5mm Color: Silver Weight: TBD



















