1x Thumb throttle (with indicator lights & button switch) 5). 2x 10-inch air wheel with gear ., 1). Electrc Motor Cart Converson at Kate Davs blog The wheel is 10 inch, it is inflated with inner tube, the wheel axle hole is 10mm., ---------- 3). 10 Inch Dual Drive Air Wheel Reverse Conversion Kit Easy Carry 200kg For E-bike Barrow Trolley Flatbed Cart Before order(important): 1). Dual Drive Cart Easy Carry 200kg 8 Inch Wheel Set for 10 Inch Dual Drive Air Wheel Reverse Electric Conversion Kit Easy Carry 200kg for E-Bike Barrow Trolley Flatbed Cart. US $248.06. 20% off US $310.08 2x 250W DC motor 2)., 2x Chain 3). 2x Motor controller with fuse wire 4). This kit is for the pull cart, people can convert the normal cart to an electric cart, this can easy carry 200kg., 2). 10 Inch Dual Drive Air Wheel Kit 250W Motor 200kg Capacity Dual Drive Electric Cart Conversion Kit Easy Carry India Electric Conversion Kit The motor is 250W each, they drive the wheel max speed about 8km/h, we also can change the gear to make the max speed about 11km/h or 4km/h., 4).