fullertonbicycle

Dura-Ace

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$26 $52 In stock

Shimano's Dura-Ace bottom brackets bring the performance and refinement expected from the top-tier Dura-Ace line. Designed for smooth rotation, these bottom brackets feature a new seal construction aimed at reducing friction and enhancing durability. Available in multiple configurations to fit a range of frame standards.

  • New seal construction for smoother rotation and improved performance
  • Hollowtech II compatible design integrates with Shimano cranksets
  • Available in 68mm English (1.37″ I.D.), 70mm Italian (36mm I.D.), and 86mm BB86 (41mm I.D.) versions to match your frame
  • Engineered for precision and reliability, consistent with the Dura-Ace name
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.5 / 5 · 4 reviews)

William D. ★★★★★

The new seal construction is the real winner here — after a few rainy rides there's still zero grit getting past it, and the crank spins noticeably smoother than before. Installation was straightforward too.

Hannah Z. ★★★★★

Swapped this in after my old bottom bracket started creaking, and the difference is immediate — the cranks spin noticeably smoother. The new seal construction seems to be doing its job too, since it's stayed quiet through a few wet rides already.

Jason Y. ★★★★☆

The new seal construction actually holds up through wet winter commuting, which is why I switched to these. Only gripe is the price, but the rotation stays smooth after a few thousand miles.