Overview: The Firma 800Kv brushless motor is a perfect option for Arrma Roller kits and 1/5 scale bashers and monster trucks with a 3-8S LiPo setup. Featuring a low cog 4-pole design, CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 8mm output shaft, and precision bearings for high durability and smooth rotation. Preinstalled with 6.5mm gold plated bullet connectors for easy installation, and perfectly matched for the Firma 160 Smart ESC. Features: Perfect upgrade for 1/5 scale bashers and monster trucks running on 3-8S LiPo batteries. High efficiency design 8S LiPo power capable High-quality 4-pole sintered rotor 6.5mm gold plated bullet connectors High-quality construction with precision ball bearings and hardened steel 8mm shaft Safe-D Shaft provides a c-clip locking point for preventing pinion gear slip