Skip to product information
1 of 2

HK Hobbies

STFU2 AM32 Crawler ESC

Regular price $65.00 USD
Regular price Sale price $65.00 USD
Sale Sold out

Shut the FOC Up micro controller!  A silent sensorless rock crawling controller with the power of 32 bit FOC technology!  This ultra smooth and quiet controller is the perfect match for 6 through 14 pole rock crawler motors.  The programming is so good that you wont need to program out of the box!  Plug and play, water proofed, ready to go!  

Tested extensively with many popular outrunner and inrunner motors in single speed crawlers.  Our custom AM32 compatible firmware is developed for the needs of crawlers with ultra slow startup, smooth throttle, and heat/amp protection built in!  It is smoother and more reliable than public AM32 flash on similar hardware, we build custom in partnership with AM32 and donate with every unit! 

1850kv outrunner 540 limit 4s recommended

2700kv inrunner 540 limit on 4s recommended


  • 2 to 4s lipo (20v max)
  • 40amp
  • size 39x26x11mm
  • 39 grams
  • 3 amp 7.4v internal BEC
  • xt60 battery plug
  • jst aux power plug
  • 4mm motor plugs
  • Water proofed
  • USB programmer included (but not really needed)

30 day warranty,  guarantee operation on delivery.