Shimano BB-UN300-K Square Taper JIS 68x122.5mm Spindles English Bottom Bracket

Shimano BB-UN300 Square Spindle Bottom BracketsFeatures-Fits JIS square-taper cranksets-Crankarm fixing bolts sold separately-Hollow spindle-For chain caseItem Specifications-BB Shell Width (mm):68 mm-Spindle Interface Type:Square Taper JIS-Bottom Bracket Shell I.D.:1.37-BB/Frame Interface:English-Spindle Length:122.5