Holmes Hobbies CrawlMaster HV 1/10 Rock Crawler Sensorless Brushless ESC (2-6S)

ESC Overview:

The Holmes Hobbies CrawlMaster HV Brushless ESC is specifically designed for lightweight Competition RC rock crawlers, one-tenth scale and smaller single-speed trail and rock crawlers, such as the TRX4 Sport, SCX10, and Element Enduro to offer exceptional buttery smooth performance for trail, scale, and rock crawling applications. This advanced electronic speed control is capable of handling voltages up to 30v while ensuring stability with higher KV motors. With its compact design and powerful features, it provides a smooth and quiet driving experience essential for tackling challenging terrains with confidence and ease!

The CrawlMaster HV ESC features a lightweight and compact design, making it easy to install in tight spaces. Its Exclusive Sinewave Startup ensures smooth motor operation, while the silent operation with an inaudible switching frequency provides a quiet, precise driving experience. Additionally, the Normal PWM throttle delivers predictable power output, and the Intelligent RPM lock at low speeds offers unmatched control, allowing you to navigate tough obstacles with ease.

Note:

• NOT recommended for two speed vehicles, rock racers, tow rigs, and other high load installations.
• NOT recommended for vehicles heavier than 8lb.
• NOT WATERPROOF! Holmes Hobbies recommends coating with silicon conformal if you plan to running in wet, moist, or dusty conditions.

Features:

• 32-bit processing power for advanced control algorithms
• Exclusive Sinewave Startup for smooth motor operation
• Silent operation with inaudible switching frequency
• 2 to 6S LiPo compatible
• Intelligent RPM lock at low speed for precise control
• Normal PWM throttle for predictable power output
• Overcurrent, temperature, and throttle loss protection
• Automatic cell detection and low voltage protection
• 5 volt 2.5 amp internal BEC for powering servos

Specifications:

• Type:Sensorless Brushless
• Applicstion:1/10 Single Speed Rock Crawlers Up to 8lbs
• Input Voltage Voltage:2 to 6S LiPo (30V max)
• Continuous Current:40A
• Peak Current:120A
• Dimensions:(38x27x4.6mm)
• Weight:32g
• BEC:5V 2.5A
• Battery Connector:XT60

Includes:

• (1) Complete ESC
• (1) 100mm motor leads
• (1) 100mm XT60 battery lead with integrated JST connection
• (1) 125mm Rx lead

This product was added to our catalog on October 7, 2024

• Axial Capra
• Axial SCX10 II
• Axial SCX10 Pro
• Element RC Enduro
• Redcat Ascent
• Traxxas TRX-4
• Traxxas TRX-4
• Vanquish VRD
• Vanquish VS4-10

Ken Verified Owner Sunday, Oct 27 2024 (11 months ago) Holmes Hobbies CrawlMaster HV 1/10 Rock Crawler Sensorless Brushless ESC (2-6S) Great esc BUT you must run an external BEC for any servos to work. The built in the doesn’t have enough power. 2 of 3 customers found this review helpful. Jimmy M Verified Owner Tuesday, Aug 19 2025 (6 weeks ago) Holmes Hobbies CrawlMaster HV 1/10 Rock Crawler Sensorless Brushless ESC (2-6S) I bought this for my 1/10 scale crawler and so far no complaints. Has a nice and smooth slow crawl and plenty of power when needed. I’m running an external BEC due to the limited power the ESC provides. I wouldn’t think twice to purchase another one for another rig. View all reviews