2 reinforced bearings + 2 POLINI crankshaft oil seals for MBK 51, MOTOBECANE AV10, AV7

Set of two POLINI bearings, original size, reinforced folded steel cage from SKF . Bearing clearance: C3. Suitable for original or prepared configurations (not exceeding 13,500 / 14,000 rpm which will require C4). Supplied with a set of good quality lip oil seals, specific to POLINI for good sliding and good resistance to the constraints of high-performance 2T engines, they can be mounted on all adaptable or original crankcases except the large POLINI crankcases of MBK 51! Can be mounted on MOTOBECANE AV10 / AV7 / MBK 51 engines of all models.