Transmission Cover Bearing 17x40x12 Yamaha Aerox \/ Nitro

crankcase cover bearing for Yamaha Aerox \/ MBK Nitro am6 v217x40x12mmATTENTION: There are two different versions of AM6 engine transmissions. Series 1 or V1, which is identified by having a solid output shaft with 6mm thread (small bore) and Series 2 (V2) with hollow shaft and 8mm thread (large bore). Please compare the picture provided with the output shaft of your motorcycle to avoid errors in your order.