Gear BBS01 BBS02 36 V / 48 V ABS Metal Depth 3mm For BAFANG Mid-mounted Motor
For Bafang mid-mounted motors 36 V / 48 V 250 W / 350 W / 500 W / 750 W / 1000 W. Nylon is a necessary evil is because if steel gears were used it would be very noisy. good compatibility for 01, 02, for HD.