ITEM NAME:2838 4500KV 4P Sensorless Brushless Motor+35A ESC for 1/14 1/16 1/18 RC Car Q6W2 2838 4500KV 4P Sensorless Brushless Motor+35A ESC for 1/14 1/16 1/18 RC Car Q6W2 4 Pole 12 slot hi-torque motor design; High purity copper windings maximizes efficiency CNC machined 6061 T6 billet aluminum heatsink can; High RPM ABEC5 oversized bearings Precision engineered for maximum energy conversion; Short stator, less wire, lower resistance, more power; Precision balanced rotor,smoothness for best reliability and maximum RPM Suit for 1/14 1/16 1/18 brushless cars-multi-mounting system for M2.5 screws Specifications of Motor: KV(RPM/Volt): 4500KV Max current: 50A Max watts: 600W Max voltage: Less than 12V IO: 1.8A Rotor poles: 4 Resistance: 0.0285 Diameter: 28mm Length: 38mm Shaft length: 15mm Shaft diameter: 3.175mm Weight: 90g Sensored: No Features of ESC: Highest quality components to ensure high efficiency operation Excellent start-up, acceleration and linearity features Plenty of programmable items, suitable for various of chassis's, tires and racing tracks Multiple protection features: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection Internal timing can be changed easily to make the ESC suitable for various of motors Specifications of ESC: Constant current: 35A Burst current: 120A (10S) Power supply: 2-3S LiPo battery / 4-6S NiMh battery BEC: linear mode switch 5V 1A Package List: 1 * 2838 4500KV 4P Sensorless Brushless Motor 1 * 35A Brushless ESC Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.