Ultegra is "pro-proven" as it is a direct trickle-down from the Dura-Ace groupset.
- Optimized lightweight crank arm design produces excellent power transfer
- Minimized weight without sacrificing stiffness
- Rider tuned gear performance through various gear combinations
- Redesigned FC for greater frame compatibility
- Wider gear pitch increases clearance between chain and leading teeth
- Hollowtech II crank construction
- 2x11-speed
