Shimano BB-UN300 English Square-Taper Bottom Bracket - 73mm
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A Shimano BB-UN300 English-threaded bottom bracket for 73mm shells and compatible JIS square-taper cranksets. Crank fixing bolts sold separately.
Follow the supplied fitting and service instructions. Check compatibility with your bicycle's existing components before ordering.
Shimano BB-UN300 English Square-Taper Bottom Bracket - 73mm
Sale price$28.99Regular price
$37.99