Shimano BB-UN300 Bottom Bracket - English, 68 x 122.5mm Spindle, Square Taper JISShimano BB-UN300 Square Spindle Bottom BracketsFits JIS square-taper cranksetsCrankarm fixing bolts sold separatelyHollow spindle47.5mm chainlineModel: BB-UN300 Bottom Bracket
Shimano BB-UN300 Bottom Bracket – English, 68 x 122.5mm Spindle, Square Taper JIS
Shimano BB-UN300 Square Spindle Bottom Brackets
Fits JIS square-taper cranksets
Crankarm fixing bolts sold separately
Hollow spindle
47.5mm chainline
Model: BB-UN300 Bottom Bracket
Brand: Shimano
Spindle Interface Type: Square Taper JIS
BB Shell Width (mm): 68
Bottom Bracket Shell I.D.: 1.37
Spindle Length: 122.5
BB/Frame Interface: English
Manufacturer Part Number: EBBUN300B22X
UPC: 192790619156
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