• Shimano Dura-Ace R9100 Compact Chainset

        • $599.99 599.99
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Shimano Dura-Ace R9100 Compact Chainset

The Shimano Dura-Ace R9100 Compact Chainset has been completely re-designed to offer the very best combination of light weight and stiffness. It features Shimano's iconic 4-arm hollow spider that is made from hollow-forged aluminium.

Although the crank arms and spider arms are noticeably bigger, which increases stiffness, the overall weight has dropped by 7g over the previous edition of Dura-Ace.

The crankset has been adapted to work with disc brake road bikes that generally have 135mm rear hub spacing and shorter chainstays without the need to increase Q-factor thanks to its wider chainring spacing.

The Compact version offered here features a 50.34T chainring profile to offer an excellent rider tuned gear combination for varied conditions from flats to high mountains.

Please note: Bottom bracket is NOT included.


  • Enhanced design saves 7g while maintaining rigidity
  • Iconic 4-arm construction maintains high rigidity and reduces weight
  • Optimised crank arm design strengthens key stress zones
  • New chainring tooth profile is adapted for race bike specific disc brake systems
  • Accommodates shorter chainstays (410mm) with 135mm OLD rear spacing
  • Hollowglide chainring construction maintains smooth shifting whilst reducing weight and increasing stiffness
  • Weight: 609g (50.34T)

Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUnited States of America
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

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  • Colour: Silver
  • BoltCircle: 110mm
  • Teeth: 50.34t
  • Speed: 11 Speed
  • Length: 175mm, 170mm, 165mm, 172.5mm
  • Material: Alloy

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