1、[Texture of Material] 4 pole 12 slot high torsion motor design. 6061 T6 billet aluminum radiator tank processed by CNC 2、[High Efficient] Shaft diameter 3.175mm high purity copper winding can maximize efficiency 3、[ Accuracy Design ] Accuracy design for maximum energy conversion. Accuracy balanced rotor for optimum RPM 4、[ Excellent Performance ] Enhanced throttle response, excellent acceleration, strong braking and throttle linearity 5、[Scope of Use] With programming card, DIY programmable electric adjustment, for remote control car Item Type: 3650 3500KV Motor Set Motor Parameters Color: Silver Black Power: 900W Maximum Ampere: 62A KV (RPM  Volt): 3500KV Maximum RPM: 50000 Diameter: Approx. 36mm / 1.4in Length: Approx. 50mm / 2in Shaft Length: Approx. 15mm / 0.6in Shaft Diameter: Approx. 3.175mm / 0.12in Electric Regulation Parameters Continuous Current: 60A Burst Current: 360A Applicable Battery: 2-3S Lipo / 4-9S NiMH (Excluding) BEC Output: 5.8V/3A Programming Card Parameters Startup Mode: Medium Soft Strong Maximum Braking Force: 50%,25%,75%,100%(25A,35A,45A,60A) 25%,50%,75%,100%(80A,120A) Maximum Reverse Force: 25%, 50%, 75%, 100% Neutral Range: 9%, 6%, 12% Working State Applicable: 1 / 10 Remote Control Vehicle 1 x Motor 1 x Electronic Speed Control 1 x Programming Card 1 x User Manual