Shimano
Shimano UN300 Bottom Bracket
$39.00
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Shimano UN300 Bottom Bracket Square Taper
<li>SHIMANO quality/performance cartridge bearing square bottom bracket</li><li>Better chainline stability with chain line stabilizer</li><li>3 structures available</li><li>Standard, E-type, chain case options</li><li>Adapter material: Aluminum</li><li>68 & 73 Shell Available</li>
