Fits DECATHLON Rockrider ST 520, ST 540 BTWIN - Rear Gear Mech Hanger CC208

Rockrider ST 520, ST 540. Rockrider 500S, 8.1 / 8.2 / 9.1 / 9.2. Our Ref: CC208. (a) Your existing hanger, back and front, preferably having removed from your bike & rear derailleur, OR. (b) A picture of the "cut out" where the hanger sits.