DOPPLER ER3 variator moving cheek on MBK 51, MOTOBECANE AV10, AV7

Ideal in case of breakage, veiling or wear, here is the movable cheek of variator for the vario DOPPLER ER3 on MBK 51, MOTOBECANE AV10, AV7 ... With or without clutch the cheek remains the same. Remember that to have a good longevity of the movable and fixed cheek, you must ride with a motor well set / aligned, a suitable belt in perfect condition and a spring not extremely stretched. Delivered with its balusters, anti-noise rings and central ring!