Fix the plate on the tire screw thread, screw the bolt to separate the wheel drive shaft and hub by pushing.

Pick the fit output shaft adapter to meet central screw, then lock in the transmission shaft, put the frame on, lock the nut and fix the screw to pull the wheel shell close to the drive shaft.

Output shaft adaptor : M22 x 1.5, M24 x 1.5, M27 x 1.5, M30 x 1.5

Patented.