Kinesis Rear Mech Hanger 12This mech hanger fits:Aithein Disc (QR Version).4S Disc (QR Version).CX Race (QR Version).CX1.Pro6 v2.Please note: this Rear Mech Hanger will not work on the following:Aithein rim brake - requires Rear Mech Hanger 10.Pro6 v1 - requires Rear Mech Hanger 7.CX Race with Thru-Axle - requires Rear Mech Hanger 15.4S rim brake - requires Rear Mech Hanger 3.4S Disc with Thru-Axle - requires Rear Mech Hanger 15.







