Revolutionizing the Rock Crawling Experience with Precision, Compatible with AXE 540/550 series motor for Optimal Performance. Includes:1x AXE R3 ESC1x AXE 540 or 550 FOC motorMotor Specifications:HOBBYWING's patented Field Oriented Control (FOC) technology. Its driving mode enhances the power system of rock crawlers. The low-speed torque is very strong, improving over standard brushless setups and even preferred over brushed setups for overall feel.The chip-type magnetic encoder inside the motor guarantees consistency between the three phases' signals and always outputs pure and precise signals indicating the rotor position.The waterproof and dust-proof design (IP67 standards) allows the AXE brushless power system to be used in all weather and track conditions without any risk of damage from water or dust. Damage to the vehicle caused by water, mud, or adverse conditions should be monitored closely when running in such environments.Intelligent torque output and speed closed-loop control ensure easy handling and consistent motor RPM under all loads.ESC Specifications:Cont. / Peak Current: 135A / 600AMotor Type: Only the XERUN AXE R3 / R2 SeriesApplications: 1/10 & 1/8 & 1/6 Rock CrawlerLiPo Cells: 2-6S LiPoBEC Output: 6V / 7.4V / 8.4V adjustable, Continuous Current of 6ASize: 49.5 (L) x 37.9 (W) x 32.8 (H) mm (w/Fan)Weight: 126.5g (Included input wires & connector)ESC Programming: iOS or Android smart phone (installed with the HW LINK app)Motor Specifications:KV (No-Load): 2100LiPo: 2-4SNo-Load Current: 2.7AMotor Diameter Length: 36.0 / 57.8 mm; 1.42 / 2.28 inShaft Diameter Length: 3.175 / 16.0 mm; 0.125 / 0.63 inPoles: 4Weight: 232gApplicable: 1/10 Crawler