RS775 24 Volt 280 Watt Drive Engine with The housing is made of high-strength composite material, which not deform and has higher strength. The large and small gears have built-in bearings to reduce friction and increase service life. The intermediate gears are metal gears. speed ratio is 1:75, high speed ratio makes the output speed higher. Motor power is 280W, high power motor ensures higher torque output. touch mounting wiring, easy to replace, suitable for children's cycling bikes, suitable for replacing with with 6 plums. Designed for use with 24V batteries. If your toy car is 12 volt, you can also use a 12 volt battery but the speed be halved. Due to the design of the it still provide very fast speed RPM: 20000RPM Colour:Gray Material:Plastic Package Contents: 1 * electric motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.