- Optimum Power Transfer
- Best Balance For Lighter Weight (-7G) And Efficiency
- New Designed Crank Arm
- Maintains High Rigidity And Reduces Weight
- Hollowglide
- 4-Arm Construction Crankset
- Adapted For Race Specific Disc Brake System
- Shorter Length Of Rear Center With O.L.D. 135mm
- Redesign The Gear Teeth Profile To Fit Wider Gear Pitch
- 50-34T/53-39T/54-42T/55-42T/52-36T
- Iconic Design
- Chain Line: 43.5