Castle’s engineers have achieved breakthroughs in circuit board thermal design and have combined those advances with cutting edge electronic components to bring unmatched power and reliability to sport 1/10th scale vehicle drivers. Castle’s leadership in this field allows us to drive the component pricing to unprecedented levels which means that we can pass the savings on to our drivers. Brushless power and reliability have never been available at these price levels!

Fully Functional - Yet Easy to Use
The Sidewinder ESC is ready to run out of the box, but it is completely Castle Link™ compatible too – drivers can use their Castle Link and Windows PC to tune and tweak all their favorite settings such as brake and throttle curves, throttle response, drag brake and many other parameters that add up to an incredible RC driving experience.

The Sidewinder 1/10th scale ESC is intended for use with the Castle 4600 KV motor up to 3S (12 Cell NiMH) and the long time favorite Castle 5700 with 2S Lipo (8 cell NiMH) MAX. Castle’s incredible CM-36 4600 kV and 5700 kV motors are made to exacting specifications and offer some of the best electromagnetic efficiencies of any motors on the RC market. We know, we’ve dyno’ed the rest and we feel we’re the best! Castle motors simply run cooler for a given power level – that means you can run them at higher power levels without worrying about thermal damage. Our top quality Neodymium magnets, carefully designed windings and high RPM bearings deliver an incredible punch.