A threaded bottom bracket set for square taper crank interface. Available in : 107mm, 110mm, 113 mm, 115 mm, 117.5 mm, 118 mm, 122.5 mm, 127.5 mm
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Information
Simple and reliable square taper bottom bracket
Replaces both BB-UN26 and BB-UN55
Sealed cartridge bearings
Cr-Mo axle
For bicycles equipped with a chain case, select BB-UN300-K
For E-type front derailleur compatibility, choose BB-UN300-E
Fixing bolts not included; Shimano FC-E6000 bolts suggested
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