The ESC is the first of its kind to run Castle’s CRYO-DRIVE technology that combines technology from cutting-edge hardware and software advancements to increase thermal performance. Cooler temps mean longer runs and more power! The SIDEWINDER 4 is a versatile ESC and is a great choice for short course and monster truck applications, as well as rock crawlers when used in brushed mode.
This combo includes a Castle 1406-5700Kv sensored motor. The 1406-5700kv motor is a great motor for 2WD short course trucks on 2s LiPo and geared conservatively. It makes a great combo for 1/10th 2WD Stadium trucks and buggies on 2s for general bashing and limited runs on 3s; temperatures will climb quickly on 3s. It makes a great upgrade for 1/10th scale on-road cars for 2s and 3s use. NOT recommended for use in 4WD short course trucks. Please refer to the Gearing Chart in the resources tab for recommended motor, battery and gearing for some of the more popular vehicles on the market.

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)
Telemetry Link compatible for Futaba® S.BUS2 (sold separately)
Specifications:
Input Voltage Range: 2s - 3s LiPo; 6 - 8 cell NiMH
BEC Specifications: 5.0 volts fixed, 2 amps.
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
ESC Size: 2.08x1.50x1.28" (52.92x38.05x32.56mm)
ESC Weight (w/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 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. Recommended Vehicle Weight: No more than 6.5lbs with battery, ready-to-run.
Programmability: Fully programmable Castle feature set using Castle Link USB adapter (sold separately) and freely downloadable Castle Link Windows software.
Telemetry Link Capable: Yes
*Product Use Statements: Although Sidewinder 4 is waterproof, it is not intended for operation while completely submerged in liquid. They can corrode when exposed to corrosive materials, such as salt water. Always rinse the ESC with clean water after exposure to corrosives or dirt. While the controller may be waterproof, Castle recommends users confirm that the rest of their vehicle, including the batteries, servos, radio and chassis are also waterproof before exposing them to liquids of any kind.
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. Castle strongly suggests using 5,000mAh or larger LiPo cells with a discharge rating of at least 30C (or high quality 25C batteries). Castle suggests using only mild gear ratios with NiMH cells. Do not attempt to use NiMH cells in extreme setups.
Please refer to the Castle Gearing Chart for recommended motor, battery and gearing for some of the more popular vehicles on the market.