Shimano Dura-Ace front axle Specifications: Color: silver Material: aluminum/steel Bike type: road bike Position: rear Suitable for the following rear hubs - Shimano Dura-Ace WH-R9100-C40-CL-R - Shimano Dura-Ace WH-R9100-C60-TU-R - Shimano Dura-Ace WH-R9100-C60-CL-R - Shimano Dura-Ace WH-R9100 -C40-TU-R