Urethane Improvement: We adopted the high elasticity urethane for the hub motor, making it more durable and last much longer.
Product Specs: 1, 90mm Diameter, 55mm Wide 2, Enbeded with a rotor of 20 magnets and C&U Super Silent Bearing 3, Rotation Speed: 2080 Rounds Per Minute 4, We also provide 6 screws and 1 wrench for one hub motor urethane. 5, This product enjoys a free shipping worldwide policy.
24 Hours Shipping: Shipping will be made via China Post ePacket same day as orders placed. Usually it takes about 7-10 days to arrive.