motor138This 3000W Mid Drive Motor (V3 Version) is an ideal solution for Dirt Bike, Go Kart, ATV, Motorcycle… This motor has 19:45 gear reduction inside,QS MOTOR. Contact: Robert Chen Skype: everchenyi000. : everchenyi. WhatsApp:+86-13456357532 E-mail: info@. Tel: 0086-13456357532 Fax:0086-57384934610