The EZRUN 2030 is applicable to various 1/16th & 1/18th scale vehicles, especially buggies. The motor housing is made from hard anodized aluminum, motor windings are wound from double insulated wire, the advanced rotor structure is designed to handle high temperature from the use of rare earth magnets and the bearings which are implemented are high precision metal caged for a minimum to zero friction which in turn will guarantee strength, outstanding performance, high durability and smoothness of the motor. The output performance of this motor has an efficiency of up to 85%. In the same load condition, EZRUN 2030 has the higher efficiency but lower temperature than other 2030 motors. Pre-soldered with high-quality gold connectors on motor leads, the EZRUN 2030 motor is definitely a plug and play. HobbyWing EzRun 2030 Features: Solid Construction High Efficiency Plug and Play Spec Check: Scale: 1/16th, 1/18th Brushed/Brushless: Brushless Sensored/Sensorless: Sensorless Pole Count: 2 KV Rating: 7800 LiPo Cells: 2 O.D.(mm): 20.0 Length (mm): 30.0 Shaft Diameter (mm): 2.0 Weight (g): 46 (HW90010000)