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.

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 Field Link Card (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)

Technical Specs:
ESC:
Input Voltage Range: 2s - 3s LiPo; 6 - 8 cell NiMH
BEC Specifications: 5.5V fixed, 2A
Operating Environment: Waterproof* design allows for use in nearly any environment.
Brake: Proportional
Reversible: Yes, but may be disabled for racing.
On/Off Switch: Yes
Cooling Fan: 30mm fan included
Size: 2.08x1.50x1.28" (52.92x38.05x32.56mm)
Weight (with wires): 2.26 oz. (64 g)
Connectors: 4mm female bullets for motor connection.
Items Needed for Operation: Brushless or Brushed motor, Battery Connector required; Castle 4mm polarized connectors, Dean's Ultra Plug, or Traxxas Power Connector recommended.
Application Guidelines: The Sidewinder 4 is a versatile ESC that can be used in a wide variety of applications. it can be paired with any of our 14xx series 4-pole brushless motors; it can also be used in a rock crawling application with a brushed motor down to a 19 turn.
Max Weight: No more than 6.5lbs with battery, ready-to-run.
Programmability: Fully programmable Castle feature set using Castle Link USB adapter (coupon for free Link included) and freely downloadable Castle Link Windows software, or the Castle Link iOS App and a B-Link Bluetooth Adapter (sold separately).
Telemetry Link Capable: Yes

Tech Notes:

Not all LiPos are created equal, and surge ratings should never be used to determine a pack’s suitability for a brushless application. Use the CONTINUOUS C rating only. Brushless setups frequently hit 100+ amps in peaks. We strongly suggest using 5,000 mAh or larger LiPo cells with a discharge rating of at least 30C (or high quality 25C batteries such as Traxxas® Power Cells®). Our experience suggests using only mild gear ratios with NiMH cells. Do not attempt to use NiMH cells in extreme setups.