SHIMANO DURA ACE 11-SPEED CHAINRING FOR FC-R9100 55-54/42T Size:55T Smooth Electric Assistance: 75Nm motor

Smooth Electric Assistance: 75Nm motor with Smart Assist delivers natural

even when aggressively driving tight

Measures: 15 cm x 31

BB-UN100 square bottom bracket not included

SHIMANO DURA ACE 11-SPEED CHAINRING FOR FC-R9100 55-54/42T Size:55T Smooth Electric Assistance: 75Nm motorReplacement chainring for Dura Ace 11 speed FC R9100 crankset (MX) with 55 54 42 teeth. The hollow forged chainrings deliver significant weight savings and increased rigidity, ensuring optimum power transfer and improved shifting characteristics. Constructed from aluminium and CFRP with anodized finish on the larger rings, these precision engineered chainrings are designed for seamless integration with your FC R9100 crankset. Specification Use: Road