Shimano BB-UN300 Square Spindle Bottom Brackets Fits JIS square-taper cranksets Crankarm fixing bolts sold separately Hollow spindleSpecs: Spindle Interface Type:Square Taper JIS BB Shell Width (mm):68 Bottom Bracket Shell I.D.:1.37 Spindle Length:118 BB/F
Shimano BB-UN300 Square Spindle Bottom Brackets
Specs:
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