Product features Use: Road Group: Ultegra R8100 Model: FC-R8100 Q-factor: 146mm Threaded BB shell width: 68 / 70mm Construction: Hollowtech II Package Including: -1Pcs Shimano FC-R8100 Crank Arm Note: 100% authentic, no original box Tariffs are not included in the cost of goods. Customers need to pay their own customs duties, and the amount is determined by the customs. Thanks.
