Shimano UN55 68 x 122.5mm Square Taper English Bottom Bracket. Shimano BB-UN55 Square Spindle Bottom Brackets
Fits JIS Square-Taper Cranksets
- TECH SPECS
|Bottom Bracket Shell I.D.||1.37|
|Spindle Interface Type||Square Taper JIS|
|BB Shell Width (mm)||68|
Item Specific Details
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