Shimano Dura-Ace FC-R9100 Chainring 11 Speed 42T 110mm BCD e-bike-road 8mm Clamp 70mm 6 Degree
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Shimano Dura Ace FC R9100 Chainring 11 Speed 42T 110mm BCD e bike road 8mm Clamp 70mm 6 Degree 8mm Clamp 70mm 6 Degree Beyond Black Trek Farley EX 8 Large Fat Bike 2017 Shimano Dura Ace FC R9100 Chainring 11 Speed 42T 110mm BCD