3650 5200KV Sensorless Brushless Motor with 120A ESC Electronic Speed. Complete 3650 5200KV sensorless brushless motor with 120A ESC and programming card, no need for you to match different motors and ESCs anymore, save your time. Water-proof and dust-proof for all weather races (Note: Please uninstall the cooling fan before using the ESC in water; clean and dry it soon after the use for avoiding the connectors get rusty). Specially designed for 1/10 RC car truck with excellent start-up, acceleration and linearity features. The strong resistant current capability, excellent heat dissipation. Multiple protection features: Low voltage cut-off protection for lithium or nickel battery/Over-heat protection/throttle signal loss protection/motor blocked protection, Easily programmed and compatible with pocket-sized program card. 4 Pole 12 Slot Hi-torque motor design, high purity copper windings maximizes efficiency, high RPM ABE C5 oversize bearings, stator-super Thin (0.35 mm) lamination. Universal fits all 1/10 brushless cars-multi-mounting system for M3 screws, removable/replaceable Rotor, precision engineered for maximum energy conversion.