Shimano UN300-K Square Taper English Bottom Bracket (Silver) (BSA) (68mm) (122.5... - EBBUN300KB23XW
Shimano UN300-K Square Taper English Bottom Bracket (Silver) (BSA) (68mm) (122.5... - EBBUN300KB23XW, Shimano UN300-K Square Taper English Bottom Bracket (Silver) (BSA) (68mm) (122.5mm) (w/ 0.7mm Spacer) (For Chain Case) - EBBUN300KB23XW