Application It is suitable for electric scooters, motorcycles, e-bikes, go-karts, e-bikes, motorcycles, electric tricycles, mid-engine kits, complete sets, DIY engine systems, and bicycle parts, etc. Specification Motor Type: High-speed BLDC Brushless Motor Output/ W: 2000W Rated Speed: 4300r/min Rated Current: 60V 36A Material: Aluminum Weight: About 4.1kg/ 9.04lbs Diameter: 10.7cm/ 4.21in Rated Torque/N. M: 5.15 N. M Sprocket/ Chain: T8F Sprocket Controller Power: 2000W Controller Voltage: 60V DC Controller Current: 45A Mosfet: 18MOS.