Description: 540 80T Brushed Motor for 1/10 HSP RC Car Rock Crawler On-road Drifting Car 4WD Vehicle RC Car Parts RC Motor Shaft dia: 3.17mm Shaft length: 12mm High Purity Copper Windings Maximizes Efficiency. High RPM Oversized Bearings Precision balanced rotor, smoothness for best reliability and maximum RPM Suit for 1/10 RC Car Truck Boat Crawler HSP RC4WD D90 SCX10 Axial Material: Metal Color: Blue Size Chart: Diameter: Approx. 36mm/ 1.41inch Length: Approx. 53mm/ 2.08inch Package Includes: 1 Piece 540 80T Brushed Motor