This is the Novak Goat Brushless Rock Crawler System with the 18.5T Sintered Brushless Crawler Motor and the Crawler Electronic Speed Control System.  This is specifically designed for rock crawlers.  This works very well on vehicles like the Tamiya Clodbuster and Axial AX10 Scorpion.

As the R/C crawling segment gains popularity, the need for crawler-specific equipment has become greater. Novak is happy to fill the need with the Crawler Sintered Brushless System (#3019), which includes one sensor-based, 18.5-turn Crawler Brushless Motor factory-wired to a new XBR-based Crawler Brushless ESC. Novak has always felt that brushless technology is an ideal fit for crawling applications due to their instant throttle response, super low-speed drivability, and explosive torque - the very features crawling enthusiasts look for.

As any crawler aficionado can tell you, crawler vehicles require precise movement control at very low speeds. That being said, it makes sense to use equipment specifically designed for this purpose. Enter Novak Electronics. One of the few, if not the only R/C manufacturer, who offer electronic products specifically designed for crawlers. The sensor-based Crawler Brushless System is equipped with features that enable crawlers to climb over, maneuver through, and conquer the most challenging terrain.

XBR-BASED ESC WITH CRAWLER SPECIFIC FEATURES
The Crawler Brushless ESC is based on Novak’s XBR Sport ESC, which has been outfitted with crawler-specific software. It is equipped with an improved 6 volt/ 5 amp BEC that’s perfect for super high-torque servos in crawling conditions. Its Zero Reverse Delay allows instant power delivery in both forward and reverse when needed. Adjustable, high-power Drag Brakes, also known as “hold” or “hill” brakes, provide monster holding power that’s especially useful when embarking on a downhill descent. The Crawler ESC also has two throttle profiles: one with standard motor rotation, another with reverse motor rotation. In either profile, users can enable or disable built-in Li-Po cut-off protection, which monitors the vehicle’s Lithium Polymer battery pack’s voltage, and prevents the batteries from going below the critical safety voltage level.

GREAT MOTOR FEATURES
The Crawler Brushless Motor still includes the same great features that have made it popular, plus it now includes a significant upgrade: a sintered rotor. The Crawler Brushless Motor now includes the same high-performance sintered rotor that Novak’s Velociti-series motors currently use. The rotor is ideal for use with any and all applications, and provides the following benefits:

• Significantly increased magnetic strength for improved throttle feel
• Improved, stronger motor braking power
• Improved performance in higher temperature conditions
• Improved motor acceleration and power
• Higher efficiency
• Lower current draw
• Nickel-plated for a long lasting, smooth, clean finish

Popular features left intace include a larger, more rugged front bearing for extra durability and extended life (same bearing used in Novak’s Velociti-series motors). It still sports ribbed aluminum end bells, and the same popular solder tab system that is used in Novak’s Velociti-series motors. The lower-resistance solder tabs allow for more flexible soldering options, and are extremely efficient and easy to use. The solder tabs provide the lowest possible voltage drop, and allow for easy and convenient power wire replacement.

Features:
18.5 Turn Motor Features:

• Specifically designed for R/C vehicles that require precise movement control
• Sensor-based technology for excellent low-speed driveability
• High-strength Sintered rotor for unmatched performance
• Oversized Front Bearing for extra durability and extended life
• Aluminum ribbed end bells for additional cooling
• Direct-Solder Wiring Tabs for flexible soldering options
• Ideal for rock crawlers
• Minimal Maintenance
• Low cogging
• Designed and assembled by Novak in the USA using globally-sourced components

ESC Features:

• 2 Driving Profiles: Profile 1: Normal motor rotation; Profile 2: Reverse motor rotation
• Brushless throttle profiles feature Zero Reverse Delay and adjustable high-powered Drag Brakes (or “hill” or “hold” brakes)
• Built-in Li-Poly Cutoff Protection (can be activated in either throttle profile)
• User-friendly programming interface with 4 status LEDs
• Novak’s One-Touch Set-Up™ (still the easiest)
• Novak’s Radio-Priority Circuitry™
• Gold-Plated PCB Direct-Solder Wiring Tabs
• User-replaceable input harness
• Water-resistant case
• Built-in power output for optional 6 volt accessory fan (Novak #5648)
• Thermal Overload Protection
• Factory-installed power capacitor
• Designed and assembled by Novak in the USA using globally sourced components
• 120 day warranty on both components

Includes: Crawler Electronic Speed Control, 18.5 Turn Sintered Crawler Motor

Specifications:
Motor:
Number of Turns: 18.5
Design: Sensor-based
Input Voltage: 4-7 cells (1.2V/cell) or 2S LiPo cells
Watts: 119
KV (unloaded): 2,700 RPM/Volt
Motor Size: 2.08"L X 1.41"D (52.8mm x 35.8mm)
Shaft Diameter: .0125" (3.2mm)-accepts all existing pinion gears
Motor Weight: 6.73 oz. (191 grams)
Bearing: Oversized (1/2" x 3/16" Front, Standard Rear (3/8" x 1/8")
Magnet: One-piece multi-pole cylindrical high-strength sintered
Neodymium

Electronic Speed Control:
Input Voltage: 4-7 cells (1.2 VDC/cell) or 2S LiPo cells
Size: 1.54 x 1.18" (39 x 30mm)
Weight: 2.84 oz.(80.7g) with wires, 1.49 oz (42.2g) w/o wires
Throttle Programs: 2
Status LEDs: 4
BEC: Heavy-duty 6.0 volt/5.0 amp
On-Resistance: 0.0012 ohms (per each phase-3)
Rated and Braking Current: 120 amps
Voltage Cut-off: 6.25V (with LiPo cut-off circuitry enabled)
Discrete Steps: 1024 (512 forward, 512 brake/reverse)
Motor/Battery Wire: 14-Gauge Silicone