Description: The combo set includes 3650 3930KV 4 Pole brushless motor, 45A brushless ESC and LED programming card which is suit for 1/10 1/12 scale RC car. It is constructed from high quality aluminum alloy which is produced from the latest CNC machining machines This engine is designed with high power and rotational speed to provide more runtime with its high efficiency And the ESC is built with the highest quality components to ensure high efficiency operation When you connect the ESC with the program card, you can adjust and adjust all your favorite settings, such as cut-off voltage, brake and punch to force, brake traction and other parameters that add up to an incredible RC experience of driving Specification: High RPM precision bearings 3650 3930kv motor with 3.175mm shaft, Max volt 13v, Max RPM 50000, Max Amps 60A High purity copper windings maximizes Precision engineering conductivity for maximum power conversion Do ESC programming in a short time and prepare for the next race Using the advanced software interface to create or update the software High power and high efficiency combined with low weight and compact dimensions Package Includes: 1 Piece 3650 3930kv Brushless Motor 1 Piece 45A ESC 1 Piece Programing Card