Cheap And Discounts 12V 520 DC Motor with Encoder 205RPM 333RPM 550RPM 6mm D-type Shaft High Torque All Metal Gear Box Motor for Balance AckermanCar Wholesale. Buy Directly From Merchant YAHBOOM Official Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.