Shimano 7700 Dura-ace Bottom Bracket 68 – 109 mm without seals


  Precision engineered Dura-Ace 7700 Bottom bracket for road Octalink splined system22 mm diameter chrome-moly hollow pipe billet axle reduces weightSplined interface provides a more rigid crank assembly compared to tapered counterpartsCompound bearing structure – ball and needle bearings support the spindle to reduce flexMaintenance-free sealed cartridge design prevents corrosion and is easy to installAverage weight 173 grams


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Product GTIN: 04524667239307