Introducing the revolutionary Sidewinder 4™! Taking the foundation of Castle's renowned Sidewinder 1:10 Scale Series, this groundbreaking system incorporates Castle's latest breakthrough technology known as CRYO-DRIVE™. By harnessing the power of state-of-the-art hardware and software advancements, CRYO-DRIVE™ ensures superior thermal performance. Experience cooler temperatures, extended run times, and amplified power like never before with your Sidewinder 4 setup.

Discover the exceptional features of the Sidewinder 4:
• Designed for vehicles weighing up to 6.5lbs (including battery) and compatible with 2s to 3s LiPo or 6 to 8 cell NiMH power sources.
• Supports sensorless operation for both brushless and brushed motors.
• Boasts a waterproof ESC design and a splash-resistant 30MM fan*
• Provides a fixed 5.0 volts with a peak BEC of 2 amps.
• Offers audible alerts to notify you of any error conditions.
• Delivers enhanced drag brake functionality for optimal control.
• Ensures smoother sensorless startups.
• Features convenient transmitter programming for easy adjustment of six common settings.
• Access additional settings and software updates through the Castle Link software and USB adapter (sold separately), Field Link Card 
  (sold separately), or the Castle Link App with a B-LINK Bluetooth Adapter (sold separately).
• Supports Telemetry Link for Futaba® S.BUS2 (sold separately), allowing compatibility with telemetry systems.

Upgrade your RC experience with the Sidewinder 4 and unlock unparalleled performance and versatility.

Features:
Introducing the game-changing Cryo-Drive technology! Castle Creations' brilliant team of software and electrical engineers has joined forces to enhance the thermal performance of the renowned Sidewinder 3 electronic speed control. Through innovative software development, Castle has devised a groundbreaking solution that optimizes the utilization of electrical components within the ESC, minimizing heat generation and maximizing efficiency. This intelligent control system dynamically manages the components' usage thousands of times per second, resulting in a significant reduction in heat buildup compared to previous versions. The Sidewinder 4 operates at a much lower heat generation rate, allowing for prolonged and high-performance use.

To complement this software breakthrough, Castle has also completely redesigned the Sidewinder 4's case. Extensive research and fluid dynamics simulations were employed to optimize the airflow through the enclosure. This meticulous study of airflow dynamics enables the cooling fan to operate with improved effectiveness. Furthermore, a larger and higher flowrate 30mm fan, with a 44% increase in size, has been meticulously selected. This enhanced case design, coupled with the upgraded fan, dramatically enhances the Sidewinder 4's ability to dissipate heat from critical components like MOSFETs and capacitors.

With Cryo-Drive technology reducing heat generation and improving heat dissipation, the Sidewinder 4 sets a new standard for thermal performance. It empowers users to push the boundaries beyond previous Sidewinder generations, accommodating higher gear ratios in heavier vehicles while extending runtime. Unleash the full potential of your RC experience with the Sidewinder 4 and embrace a new level of thermal efficiency and performance.

More Features:
Castle Link Compatible With the optional Castle Link USB Programming Kit you can use your Windows™ PC to easily program your controller. Adjustable settings include:
• Throttle curve
• Braking curve
• Drag brake
• Auto LiPo cutoff
• Punch Control
• Reverse Type
• Motor Type

Additional Castle Link benefits include:
• Access to all firmware updates, including added features sets released from Castle Engineering, at no charge.
• Intuitive Demo Mode capability.
• Ability to save setup profiles for later use.

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: 
• L: 2.08" (52.92mm)
• W: 1.50" (38.05mm)
• H: 1.28" (32.56mm)

• 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.

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, we suggest 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.

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.

Please refer to our Gearing Chart for recommended motor, battery and gearing for some of the more popular vehicles on the market.

• 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, or the Castle Link 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.

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 and 1415 4-Pole brushless motors