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Shimano BB-UN300 Square Taper Bottom BracketA durable and reliable bottom bracket for smooth pedaling performance.
• Replaces both BB-UN26 and BB-UN55• Sealed cartridge bearings for longevity and low maintenance• Cr-Mo axle for enhanced strength and durability• BB-UN300-K version available for bikes with a chain case• BB-UN300-E version compatible with E-type front derailleurs• Fixing bolts not included (Shimano FC-E6000 bolts recommended)
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Review Shimano, BB-UN300 D-NL, Square Taper BB, British, 73mm, : 122.5mm, Silver