- Non-circular chainrings withoptimization of pedal power (less muscular fatigue, delivered power increased). Three positions available to optimize the orientation of the chainring.
- Model: Ovalution X110
- Crank: 4-arm
- Bolt circle Ø: 110 mm Shimano road cranks ULTEGRA 5800, DURA ACE 9000 and 105 5800 only
- Teeth: 34/36/38/40/42 (inner), 48/50/52/54 (outer)
- Color: black matt
- Material: Al 7075 T6
- Compatible with 10/ 11-speed chains
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