This CR-Tuned Motor (35T) is perfect for rock crawing machines that run at low-speeds and need precise acceleration inputs. For CR-01 Chassis Vehicle, Big Tire Trucks, Touring Cars and M-Chassis Vehicles. MAX RPM is reduced to focus on increased torque. Features smooth power transfer and long endurance. Black motor body with an end bell that acts as a heat sink. 0 Degree lead angle for consistent performance. Replaceable standard type brushes. Recommended gear ratio: 32.4~50.6