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- Simple and reliable square taper Boitier de pédalier
- Replaces both BB-UN26 and BB-UN55
- Sealed cartridge bearings
- Cr-Mo axle
- For bicycles equipped with a Chaîne case, Choisir la BB-UN300-K
- For E-type Dérailleur avant compatibility, choose BB-UN300-E
- Fixing bolts not included; Shimano FC-E6000 bolts suggested
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Review Shimano BB-UN300 118mmx73mm Bottom Bracket
