Performance Bicycle
Shimano Dura-Ace R9100 Bottom Bracket - Italian

Shimano Dura-Ace R9100 Bottom Bracket - Italian

Shimano DURA-ACE R9100 Bottom Bracket - Italian. The R9100 bottom bracket by Shimano provides smoother rotation with 50% less drag, due to its new seal construction. It also features smaller ball bearings, which are positioned on the outside for lighter weight and better weight distribution. Italian threaded bottom brackets are only compatible with frames that have an Italian threaded bottom bracket shell, because they screw in the opposite direction from a standard BSA bottom bracket

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3 locations

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Performance Bicycle

6555 Pacific Ave
Stockton, CA 95207


Performance Bicycle

919 Howe Ave
Sacramento, CA 95825


Performance Bicycle

5271 Sunrise Blvd
Fair Oaks, CA 95628