Improved Design Bike Gear Rear Derailleur Mech Hanger Dropout for CERVELO R2 S3
X Bike Rear Derailleur hanger. for R2 - 2015. for S3 - 2013-15. Made of high quality material, and practil to use. Material: Aluminum alloy. Just follow the Guest Checkout instructions. for R3 - 2012-2015.