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The Shimano Dura-Ace FC-R9100 Crankset has a wider arm than the previous 9000 series crank, but this top-level component still manages to shave weight without reducing stiffness. Hollowglide chainrings and a Hollowtech II crank construction make this superb feat possible, and it’s ready for today’s modern race geometries with a re-positioned inner chainring to improve performance with 135 mm rear-spacing frames and short chainstays.
Available in multiple crank lengths and gearing options. Compatible with Shimano BB-R9100 and BB-R9100-PB bottom brackets.
Details:
- 4-arm Hollowtech II crankset
- Hollowglide chainrings
- Adapted for race specific disc brake system
- Redesigned gear teeth profile to fit wider gear pitch
- Rider tuned gearing options
- Chainline: 43.5 mm
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