The HollowTech II 11-speed Dura-Ace chainset sets new standards for both low weight and rigidity, making it the global choice for road racing's elite riders. These industry leading HollowTech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, and improve strength. The new four arm design actually delivers the same stiffness but with less weight, putting strength only where it's needed.
Shimano has raised the bar to a new level of performance with the development of a hollow outer chainring, giving vast improvements in rigidity and increased weight savings. The hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance making it precise even under high load.
There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines.
- Same bolt circle diameter for compact and traditional double chainsets means that one crankarm fits all chainring sizes
Compatible with PowerControl 7, PowerControl 8 and PowerControl VI and all other Ant+ head units.
Weight: 778 grams
Strain Gauges: 8
Wireless Protocol: Wireless ANT+ Sport
Accuracy: +/- 1% (Scientifically Proven)
Battery Life: 3000 hours of use
Warranty: 3 Years World-Wide
- Additional Information
Bolt Type Shimano 4 bolt