Please note we are we are short staffed 4/18 to 4/30. Shipping will only happen 2 days a week during this time. Thank you for your patience.

Crawlmaster Mini v3 Rock Crawler ESC - RTR

Regular price $84.99

Shipping calculated at checkout.

Crawlmaster Mini v3 Rock Crawler ESC

The CrawlMaster Mini ESC is designed for the needs of RC Rock Crawlers! It harnesses the power of 32 bit technology to offer the smooth, quiet, and torque dense driving you desire in an extra small package! The ESC is soldered and ready to plug and go!  It is conformal coated for water resistance, but we recommend extra coating with CowRC's Cow-Formal if you plan to submarine the ESC. 



  • 1/10th and smaller Single speed Trail, Scale, and Rock Crawlers such as TRX4 Sport, SCX10, Element Enduro, etc..  
  • Recommended 8lb limit, subject to gearing, driving style, terrain, etc.   
  • Recommended 1800kv limit for 4s use
  • NOT recommended for two speed vehicles, rock racers, tow rigs, and other high load installations.  


  • 32 bit processing power unlocks advanced algorithms and future upgrades
  • Exclusive Sinewave Startup (like FOC) but open system and compatible with all motors 
  • Silent operation with most motors, inaudible switching frequency
  • Intelligent RPM lock at low speed for unmatched control when it matters most
  • Regular throttle above low speed operation for torque control and less broken parts at speed
  • No on/off switch to fail. Plug it in and go! 
  • Overcurrent, temperature, stalled rotor, and throttle loss protection
  • Automatic cell detection and low voltage protection for LiPo battery
  • Ultra smooth throttle and strongest drag brake out of the box


  • 2 to 4s lipo (20v max)
  • "40amp" package, 25 amp continuous
  • size 39x26x11mm board with heatsink
  • 39 grams fully built
  • 1800kv outrunner recommended limit on 4 cell lipo
  • 2250kv outrunner recommended limit on 3 cell lipo
  • 2700kv inrunner recommended limit on 3 cell lipo
  • 3 amp 7.4v internal BEC
  • xt60 battery plug
  • jst aux power plug
  • 4mm motor plugs
  • Conformal coating for water resistance
  • USB programmer included 


Programmer and USB driver files download: Holmes Programmer