RS550 12 V 35000 motor Most of the children 's wheels are used in the motor power Specially customized for car modification size width x depth x height The gear is not equipped with a motor but is in the box specification Rated voltage: 12 V Speed: 35000rpm application: In most children, the motor power wheel can directly replace the 550 motor Colour: silver Material: metal Package Contents: 2 x 12V RS550 35000rpm motors 2 x 10 teeth 10mm gear 2 x 10 teeth 8.5mm gear 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.