hello, i have an unworn plunger rear sprocket i d like to swap for my worn b31 one. however the b31 has a 7/8x2x9/16 bearing and the plunger 1x21/4x5/8. has anyone tried to swop. i have a a65 sprocket assembly somewhere. would that fit in a standard b31 swing arm?
i think i found a bearing that converts.