描述
Ergonomic shifting operation without stress
Shimano synchronized shift
Race endurance for less damage in crush
Quick and smooth front shifting “under” high pedaling torque
Maintains compact and smooth appearance
- Series: DURA-ACE
- Top Gear Teeth: 46-55T
- Chain Stay Angle: 61-66°
- Chain Line: 43.5
- Average Weight: 104g
