Mafiabike Single Speed Cassette Driver Replacement Part for latest Bomma 29" FALCON Hub Rear Wheel (will also fit Medusa 26", Bomma 26", and blackjack-D, however the 12T driver will make the gear ratio shorter than standard)
Mafiabike Single Speed Cassette Driver Replacement Part for latest Bomma 29" FALCON Hub Rear Wheel (will also fit Medusa 26", Bomma 26", and blackjack-D, however the 12T driver will make the gear ratio shorter than standard)