Sensored Brushless Motor for 1:10 on-road models and stock racing. Dimensions: 51.3 mm (L) x 35.8 mm (Ø). Shaft diameter: 3.17 mm. No-load RPM per volt: 3150 kV. Quiet motor with a long lifespan. Weight and cooling optimized housing. Finely adjustable mechanical timing. Sensored. Sensor-controlled brushless motors feature an additional sensor cable, allowing for precise control and smooth starts. Additionally, they can achieve higher RPMs compared to sensorless motors. Brushless motor. A brushless motor is an electric motor without brushes, which, compared to a brushed motor, offers higher efficiency, less wear, and lower weight.