The Hobbywing XERUN AXE 540 R2 combo pairs the world's first FOC brushless system for rock crawlers with an 80A ESC, delivering field-oriented control for super linearity, high torque, and extreme silence.

• World's first FOC brushless system for rock crawlers — Field-Oriented Control for super linearity, high torque, and extreme silence
• Chip-type magnetic encoder guarantees consistency between three phases' signals and always outputs pure, precise signals indicating rotor position
• Polarity protection — no more reverse-wiring damage
• Waterproof and dust-proof design to IP67 standards — suitable for all weather and track conditions
• Intelligent torque output & speed closed-loop control for easy, consistent motor RPM under all loads
• Adjustable drag brake & drag brake rate control with up to 200% maximum drag brake — unprecedented parking capacity on slopes with no jerky stops
• Built-in Bluetooth connectivity — read ESC data or update firmware via smartphone using the HW LINK app
• 4-pole, 12-magnet motor with Hobbywing's patented “staggered pole” design — zero cogging effect and torque ripple for smooth low-speed operation
• New sensor harness with plug-and-screw design and silicone O-ring for a firm, waterproof sensor port connection
• Advanced waterproof, dust-proof, shock-resistant electronic switch
• Multiple protections: low-voltage cutoff, thermal, fail-safe (throttle signal loss), motor lock-up, and overcurrent

The Xerun AXE series is a closed system: the Hobbywing Xerun AXE ESC works exclusively with the Xerun AXE brushless motor and cannot be used with other motors or ESCs.

Brushless electric motors and ESCs have large amounts of torque at any RPM. Using too-tall gearing, or a vehicle that is too large or heavy, can result in damage and/or product failure. Please consult your manual and select gearing suitable for the vehicle and terrain. Always monitor ESC and motor temperatures closely after modifying your system to ensure they remain within safe operating limits.