Hobbywing HW38020387 – XeRun AXE Plus R3 ESC + AXE540 R2 2300kV Crawler Combo (2–3S)
Sensored FOC brushless system for 1/10 crawlers, consisting of the XeRun AXE Plus R3 ESC and the compact XeRun AXE540 R2 2300kV motor. At 49.8 mm long, the AXE540 R2 is shorter than the AXE540L R2 (57.8 mm) and fits chassis with limited motor space. The FOC drive delivers smooth, quiet low-speed control and high torque for technical crawling.
XeRun AXE Plus R3 ESC
- FOC drive: high torque and excellent linearity at low speed, with near-silent operation.
- Smart torque output: automatically increases torque when climbing and reduces it to hold a steady speed downhill.
- Built-in Bluetooth: settings, real-time data and firmware updates via the HW Link app (range approx. 5 m).
- Data logging: stores up to 10 minutes of the most recent run.
- Two external control channels: connect the white and yellow signal wires to free receiver channels to adjust parameters on the fly.
- Flysky i-BUS2 telemetry: battery voltage, motor speed, current and temperatures on Flysky NB4 radios (latest radio firmware required).
- Powerful BEC: switchable 6 / 7.4 / 8.4 V, 6 A continuous (up to 15 A max) – for high-voltage servos, lights and winches.
- Smart fan: starts only when the ESC reaches the preset temperature.
- IP67: splash-, water- and dust-resistant.
- 21 adjustable parameters and up to 24° turbo timing.
- Compact design: 2.1 mm longer, 1.7 mm wider and 3.7 mm lower than the AXE R2 ESC.
XeRun AXE540 R2 2300kV motor
- Compact 540 size: 36 × 49.8 mm – shorter than the AXE540L R2.
- High-precision magnetic encoder: gives the ESC more accurate rotor information than conventional Hall sensors, for better performance and efficiency.
- Low cogging torque and minimal torque ripple for smooth crawling.
- Sealed and waterproof, with a compact waterproof sensor port.
Specifications – ESC
- Type: brushless, sensored, waterproof (IP67) crawler ESC
- Scale: 1/10 to 1/6 crawlers
- Continuous/peak current: 135 A / 600 A
- LiPo: 2–6S (2–3S in this combo)
- BEC: switch mode 6 / 7.4 / 8.4 V, 6 A
- Input wires: 12 AWG, 265 mm
- Input connector: XT60
- Fan: 25 × 25 × 10 mm, 6–8.4 V, powered by the BEC
- Programming: built-in Bluetooth (HW Link app)
- Data recording: peak values, real-time data and history (graph)
- Firmware upgrade: yes
- Dimensions: 49.5 × 37.9 × 32.8 mm (height incl. fan)
- Weight: 126.5 g (incl. input wires)
- Compatible motors: XeRun AXE R2 (540/540L/550) and AXE R3 (4274) only
Specifications – motor
- Type: brushless, sensored (FOC), 4-pole
- KV: 2300
- LiPo: 2–3S
- No-load current: 2.5 A
- Diameter: 36 mm
- Length: 49.8 mm
- Shaft: 3.175 mm (1/8"), 16 mm long
- Weight: 185 g
- Waterproof: yes
- Application: 1/10 crawlers
- Compatibility: AXE R2/R3 ESC only
Good to know
- IP67 means splash-, water- and dust-resistant in normal use. The protection may decrease with age – do not submerge for long periods.
- After running in harsh conditions, disassemble and clean the motor and lubricate the bearings.
