Shimano Dura-ace - Di2 - Front Derailleur - Road - 2x11-speed Top Gear Teeth 50t-55t Total Capacity 16t Original Parts - Bicycle Derailleur - AliExpress
One Cycling Industry - Bike Shop - For those speed demon out there, Shimano Dura Ace 9100 55t & 54t outer chainring is here !! Only in OCI 😏 . . #OneCyclingIndustry #Shimano #DuraAce9100 #Chainring | Facebook