Hobbywing QuicRun Fusion SE FOC 2-in-1 540 Spec Crawler Brushless ESC and Motor System. This innovative 2-in-1 system utilizes a compact integrated ESC giving you one of the most compact and easy to setup motor/ESC systems. Featured FOC technology provides incredible low speed control and the smooth startup needed for rock crawling. This system also uses an IP67 waterproof rating giving you the confidence to tackle any trail condition. Additionally there are several programming options built into the ESC giving you the ability to tailor the driving experience to your preferences. Packed with technology specific for scale trucks and rock crawlers the QuicRun Fusion SE FOC 2-in-1 540 Spec is an excellent addition to your next build.

Features:
The integrated design of the ESC and the motor greatly reduces the overall volume and weight, and makes the layout and wiring of car frame simpler and more convenient.
The FOC driving mode provides excellent low speed torque and smooth running at extreme low speed, which makes this superior to the common sensored brushless power systems.
Thanks to the sine wave driving mode, the whole system has high efficiency, low heat, and effectively extends the runtime. Additionally the motor runs more quietly and smoother.
IP67 waterproofing gives this system excellent waterproof and dustproof performance. Under various weather conditions, the whole system can easily deal with environments containing silt, ice, snow, and water.
Intelligent torque output and speed closed-loop control, experience the cruise control and steep slope slow descent function.
Active drag brake force adjustment, providing super strong parking capacity on slope.
Multiple protection functions: battery low voltage protection, overheat protection, throttle lost protection, lock-up protection.
Supports LED program box to set ESC parameters (sold separately).
NOTE: To access ESC adjustments the Hobbywing LED programming card (HWA30501003) is required (sold separately).

Specifications:
Application: 1/10 Rock Crawler/Trail Truck
Waterproof: Yes (IP67)
Cont./Peak Current: 40A
Voltage Input: 2-3S Lipo/6-9 Cell NiMH
Motor KV: 1800KV
Diameter: 36mm 
Length: 58.1mm
Shaft Diameter: 3.175mm
Shaft Length: 16.5mm
Motor Poles: 4
Input Wires: 14AWG (200mm)
Input Connectors: XT60
ESC Programing: LED Program Box
Program Port: Independent programming interface(switch position)
Size: 36X58.1mm
Weight: 201g (including wires & connectors)

Includes:
(1) QuicRun Fusion SE FOC 2-in-1 Crawler Brushless ESC & Motor System (1800Kv) (540 Spec)