Send it with Sidewinder!
 
While the all new SIDEWINDER 4™ builds upon Castle’s most popular platform, the SIDEWINDER 1:10 SCALE SERIES, it is the first of its kind to run Castle’s newest technology, CRYO-DRIVE™. CRYO-DRIVE™ combines technology from cutting-edge hardware and software advancements to increase thermal performance. COOLER TEMPS mean LONGER RUNS and MORE POWER in your SIDEWINDER 4 setup.
Additional Features:
2s - 3s LiPo; 6 - 8 cell NiMH use in vehicles up 6.5lbs with battery, ready-to-run.
Sensorless brushless and/or brushed motor operation.
Waterproof design ESC and splash resistant 30MM fan*
5.0 volts fixed, 2 amps Peak BEC
Audible alerts for error conditions
Enhanced drag brake functionality
Smoother sensorless startups
Convenient transmitter programming for six common adjustable settings
Additional settings and software updates available via Windows®-based Castle Link software and USB adapter (sold separately) or via the Castle Link App and a B-LINK Bluetooth Adapter (sold separately).
Telemetry Link  compatible for Futaba® S.BUS2 (sold separately)
 The SIDEWINDER 4 is a versatile ESC and is accepted in a wide variety of applications.  Whether throwing dirt, ripping through a corner or steadily dominating the trails, we’ve got you covered! 
 
The Sidewinder 4 is available as:
ESC only for rock crawling applications with brushed** motor down to 19 turn.
ESC only for use with your existing Castle 1406, 1410 or 1415 4-Pole brushless motor
ESC and motor combo packages, bundled with our 1406, 1410, 1412 and 1415 4-Pole brushless motors