Cheap And Discounts 28T 36T 38mm Steel Gear With Bearings Wheel Hubs Metal Electric Scooter Planetary Gear E-bike Hub Motor Nylon Gears XF07 XF08 Wholesale. Buy Directly From Merchant ZYheng Cycling Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.