Manufacturer: Lonex Long A1 Titan Motor Infinite Toruqe-up and High Speed Revolution Motor For SP130, SP140, SP150, and SP170 Springs The Titan motor series uses heat resistance enameled wire which can handle temperatures up to 200 ℃. This helps the motor to maintain the low temperatures needed to be effecient and durable. It also greatly increases your battery's life. The set of ball bearings installed at both ends of the motor not only improve your RPS, but they also consume less battery power. The front end of the motor has an aluminum cage to improve ROF. A highly durable nylon cover at the back helps to withstand high temperatures and extreme wear. Also, the motor pinion gear uses high density steel that can endure the pressure of a high torque and high speed setup.