Shimano BB-UN300 Bottom Bracket - English 68 x 122.5mm Spindle Square Taper JIS 50mm Chainline
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Sku: EBBUN300B23X
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Bottom Bracket Shell I.D. 1.37
BB/Frame Interface English
BB Shell Width (mm) 68
Spindle Interface Type Square Taper JIS
Spindle Length 122.5
Defined Color Black