The all new and improved Sidewinder 4 builds upon Castle's most popular platform - the Sidewinder 3.
The Sidewinder 4 is the first platform running Cryo-Drive technology which reduces operating temperatures in all applications. Cryo-Drive is a potent combination of software enhancements and precision fluid dynamics. The new case is designed specifically for maximum airflow from the huge 30mm fan included with the Sidewinder 4. These changes result in cooler ESC temperatures, increased runtime and power handling. All of these improvements mean you can gear more aggressively for more speed and harder/longer runs.
Of course it is still waterproof** and compatible with the optional Castle Link USB programmer.
This combo is designed for 1/10 short course trucks up to 6.5lbs or lighter 2WD stadium trucks and includes a Sidewinder 4 ESC and 1406-3800Kv 5mm sensored* motor. The 1410-3800Kv 5mm is ideal for short course trucks running on 2S LiPo and weighing up to 6.5 lbs; it can be run on a 3S LiPo with very conservative gearing. It is a cooler running torque animal for lighter 1/10th scale 2WD stadium trucks and buggies running up to a 3S LiPo>Sidewinder 4 combo includes:
Sidewinder 4 ESC
- Castle 1406 1Y 3800Kv 5mm sensored* motor
- Quick Start Guide
- 1/10th scale gearing chart
- Decal sheet
*Sensored capabilities of the motor cannot be utilized with the Sidewinder 4. If you require sensored operation you will need a sensored ESC like the Mamba X.
**Not intended for operation while submerged in liquid. If unit is operated in wet conditions, rinse with fresh water to remove dirt or corrosives, then fully dry unit.
- Scale: 1/10
- Vehicle Type: Short Course Truck (SCT), 2WD Stadium Truck, 2WD Buggy
- Maximum Vehicle Weight: 6.5 lbs (with battery, ready-to-run)
- Motor Type: Brushless sensored
- Motor Series: Castle 1410
- Motor KV Rating: 3800Kv
- Motor Shaft Diameter: 5mm (0.197 inches)
- Motor Shaft Length: 21mm (0.826 inches)
- ESC Type: Castle Creations Sidewinder 4 Waterproof Brushless Electronic Speed Controller
- ESC Technology: Cryo-Drive thermal management system
- ESC Operation Mode: Sensorless brushless (sensored mode not supported)
- Brushed Motor Support: Yes, sensorless brushless and/or brushed motor operation
- Battery Compatibility — LiPo: 2S (7.4V) and 3S (11.1V)
- Battery Compatibility — NiMH: 6-8 cell packs
- Recommended Battery for Max Weight: 2S LiPo for vehicles up to 6.5 lbs
- Recommended Battery for Lighter Builds: 3S LiPo for lighter 1/10 scale stadium trucks and buggies (with conservative gearing)
- BEC Output Voltage: 5.0V fixed
- BEC Maximum Peak Current: 2.0 amps
- Waterproof Rating: Yes, fully waterproof ESC with splash-resistant 30mm cooling fan
- Water Submersion Rating: Not intended for full submersion in liquid
- Cooling Fan: 30mm splash-resistant
- Motor Operation: Forward and reverse
- Programmable Features: Yes, via transmitter programming for six common adjustable settings
- Low-Voltage Cutoff: Programmable (auto cutoff enabled)
- Overload Protection: Yes
- Audible Error Alerts: Yes
- Enhanced Drag Brake: Yes, enhanced drag brake functionality
- Smooth Sensorless Startups: Yes, improved startup performance
- Motor Timing Adjustment: No adjustable timing
- Connector Type: Open ends (solder connections)
- Castle Link Software Support: Yes, Windows-based programming and software updates via optional USB adapter
- Field Link Card Support: Yes, optional Field Link Card programming available
- Futaba S.BUS2 Telemetry Compatibility: Yes (requires separate S.BUS2 compatible Futaba radio system)
- Included in Box: Sidewinder 4 ESC, 1410-3800Kv 5mm sensored motor, Quick Start Guide, 1/10th scale gearing chart, decal sheet
Overview
The Castle Creations Sidewinder 4 Waterproof Brushless ESC and 1410-3800Kv 5mm Shaft Motor Combo represents the pinnacle of modern RC electronics engineering for 1/10 scale short course trucks and stadium truck builds. This powerful combo brings together Castle's legendary Sidewinder platform with cutting-edge Cryo-Drive technology, making it an exceptional choice for UK RC enthusiasts looking to upgrade their 2WD SCT and stadium truck setups. Whether you're a seasoned RC racer in the UK, a weekend basher, or someone discovering the thrills of brushless RC cars for the first time, this combo delivers the performance, reliability and thermal management that serious hobbyists demand.
The Sidewinder 4 ESC is the first in Castle's iconic 1/10 scale series to feature their revolutionary Cryo-Drive technology, a sophisticated combination of advanced software algorithms and precision fluid dynamics that fundamentally transforms how the speed controller performs in the field. This innovation means cooler operating temperatures, extended runtimes on a single charge, and the ability to gear your RC truck more aggressively for higher speeds and more demanding runs. The included 1410-3800Kv sensored motor is a torque-focused powerhouse, perfectly matched for lighter 1/10 scale 2WD stadium trucks and buggies running up to 3S LiPo batteries, or for short course trucks weighing up to 6.5 lbs on 2S LiPo. Together, they form a complete, matched combo designed specifically for vehicles in this weight and power class.
When you order this brushless RC combo from RC Model Shop, you're investing in genuine Castle Creations quality and backed by expert UK-based support. The waterproof design means you can tackle dusty tracks, grassy fields and wet-weather conditions with confidence, whilst the included quick start guide and 1/10 scale gearing chart get you running quickly. This is a ready-to-install combo that eliminates the guesswork of component matching and saves you significant money compared to purchasing the ESC and motor separately.
Key Features
- Cryo-Drive Technology — Castle's proprietary combination of advanced software enhancements and precision fluid dynamics engineering reduces ESC operating temperatures across all driving conditions, allowing longer runtimes, more consistent power delivery, and the ability to run more aggressive gearing without thermal throttling.
- Waterproof ESC Design — The Sidewinder 4 features a fully waterproof speed controller with a splash-resistant 30mm cooling fan, allowing safe operation in dusty, damp and muddy environments typical of UK RC tracks and fields, though it is not designed for full submersion in water.
- Enhanced Thermal Performance Case — The redesigned ESC case is engineered specifically to maximise airflow from the large 30mm fan, working in concert with the Cryo-Drive technology to maintain optimal operating temperatures even during extended high-performance runs.
- Sensorless Brushless Operation — The Sidewinder 4 operates sensorless brushless motors with smooth startup performance and no timing adjustments needed, though it can also run brushed motors if required, making it extremely versatile across different RC applications and vehicle types.
- Programmable Settings via Transmitter — Six common adjustable settings can be programmed directly through your transmitter without additional hardware, allowing quick optimisation for different track conditions, driving styles and vehicle setups.
- Advanced Software Updates — The ESC supports Windows-based Castle Link software updates and USB adapter programming (sold separately), ensuring you always have access to the latest performance enhancements and bug fixes.
- Castle Link USB Programming Support — Additional settings and comprehensive software updates are available via the optional Castle Link USB adapter or Field Link Card, providing professional-level customisation for competitive drivers and advanced enthusiasts.
- Futaba S.BUS2 Telemetry Compatibility — The Sidewinder 4 is compatible with Futaba S.BUS2 telemetry (sold separately), allowing real-time monitoring of ESC performance data on compatible Futaba radio systems for data-logging and performance analysis.
- Fixed 5.0V BEC with 2A Peak Current — The integrated 5.0 volt fixed voltage regulator provides up to 2 amps of peak current to power receivers and servos reliably, with sufficient headroom for modern high-torque digital servos in short course and stadium truck applications.
- Enhanced Drag Brake Functionality — Improved drag brake performance allows greater control during deceleration and reverse operations, essential for precise manoeuvring on technical tracks and demanding driving situations.
- Audible Error Alerts — The ESC provides audible feedback for error conditions, allowing drivers to diagnose problems quickly without needing to connect diagnostic equipment or software.
- Programmable Low-Voltage Cutoff — Adjustable low-voltage protection safeguards your LiPo batteries by automatically reducing power when voltage drops to user-defined thresholds, extending battery lifespan and preventing over-discharge damage.
- Auto Cutoff Protection — Automatic shutoff features protect against overload conditions and excessive temperatures, ensuring the ESC and your vehicle remain safe during demanding racing sessions.
- Forward and Reverse Operation — Full forward and reverse capability with smooth transitions, essential for stadium truck and short course truck racing where precise control is critical.
- 1410-3800Kv Sensored Motor — The matched 1410 series motor features sensored capabilities for smooth operation (though sensored functionality cannot be utilised with the Sidewinder 4), and the 3800Kv rating provides an excellent balance of torque and top speed for lightweight 1/10 scale vehicles.
- 5mm Solid Shaft Design — The motor features a 5mm diameter solid shaft with 21mm shaft length, providing secure mounting and compatibility with standard 1/10 scale pinions and slipper clutches used in SCT and stadium truck applications across the UK.
- 2S to 3S LiPo Battery Compatibility — The combo supports 2S LiPo (7.4V) and 3S LiPo (11.1V) battery packs, with the motor ideally suited for 2S operation in vehicles up to 6.5 lbs, and capable of running 3S with conservative gearing in lighter builds.
- NiMH Battery Support — The Sidewinder 4 also supports 6-8 cell NiMH battery packs for users who prefer nickel-metal hydride chemistry, providing flexibility in power source selection.
Technical Performance
The Sidewinder 4 ESC combined with the 1410-3800Kv motor represents a carefully engineered solution for 1/10 scale 2WD short course trucks and stadium truck racing in the UK. The motor's 3800Kv rating strikes an optimal balance between torque and speed, delivering strong acceleration and hill-climbing ability whilst maintaining manageable top-end velocity for tight technical courses. The 5mm shaft diameter is the industry standard for 1/10 scale vehicles, ensuring perfect compatibility with the vast majority of pinions, clutches and transmission components available from UK RC retailers. The ESC's waterproof construction with splash-resistant 30mm fan allows operation in the full range of UK weather conditions, from dusty summer tracks to wet autumn fields, though extended water submersion should be avoided. The Cryo-Drive technology actively monitors and manages thermal output through intelligent software algorithms, preventing the thermal throttling that limits performance on longer runs—a critical advantage when racing competitive heats or enjoying extended bash sessions. With a fixed 5.0V BEC delivering up to 2 amps peak current, the system reliably powers modern digital servos and receivers without the voltage sag that compromises steering precision. The 2S-3S LiPo compatibility with vehicles up to 6.5 lbs makes this combo ideal for standard weight short course trucks, whilst lighter stadium truck and 2WD buggy builds can safely run 3S packs with appropriate gearing choices. The sensorless brushless operation requires no sensor wires, simplifying installation and reducing potential points of failure compared to sensored setups.
What's in the Box
- Castle Creations Sidewinder 4 Waterproof Brushless ESC
- Castle 1410-3800Kv 5mm Sensored Brushless Motor
- Quick Start Guide
- 1/10th Scale Gearing Chart
- Decal Sheet
What You Need to Complete
- Receiver compatible with your transmitter
- 2S or 3S LiPo battery pack (2S recommended for 6.5 lb vehicles, 3S for lighter builds)
- Battery charger suitable for LiPo packs
- Servo or servos appropriate for your vehicle type
- Pinion gear matched to your gearing choice (consult included gearing chart)
- Vehicle chassis compatible with 5mm shaft motors (most 1/10 scale 2WD short course and stadium trucks)
- Castle Link USB Adapter or Field Link Card (optional, for advanced programming)
- Futaba S.BUS2 compatible radio system (optional, for telemetry capabilities)
Frequently Asked Questions
- Is the Sidewinder 4 ESC suitable for beginners building their first brushless RC truck UK? — Yes, this combo is excellent for RC newcomers because it's a complete, pre-matched system where guesswork is eliminated. The Sidewinder 4's sensorless operation requires no sensor wiring, the fixed 5.0V BEC reliably powers standard receivers and servos, and the included quick start guide and gearing chart get you running quickly. The waterproof design also means you can learn in diverse UK conditions without worrying about electronics damage. However, you will need to source a receiver, battery pack, charger and servo separately, and ensure your vehicle chassis is compatible with a 5mm shaft motor.
- What battery does the Sidewinder 4 Sidewinder 4 combo require, and how many cells should I use? — This combo accepts both LiPo and NiMH battery packs. For LiPo, use either a 2S pack (7.4V) or 3S pack (11.1V). The 1410-3800Kv motor is ideally suited for 2S LiPo operation in short course trucks weighing up to 6.5 lbs, providing the best balance of performance and component lifespan. You can run 3S LiPo on lighter vehicles (1/10 scale stadium trucks and 2WD buggies) with very conservative gearing, but ensure your vehicle's structural components can handle the increased power. For NiMH, the ESC supports 6-8 cell packs. Always use a quality charger designed for your chosen battery chemistry to ensure safe charging.
- Can I use the sensored capabilities of the 1410 motor with the Sidewinder 4 ESC? — No, the sensored capabilities of the included 1410-3800Kv motor cannot be utilised with the Sidewinder 4 ESC, as the Sidewinder 4 operates exclusively in sensorless mode. The motor operates perfectly well in sensorless mode with the Sidewinder 4, delivering smooth startup and consistent performance. If you require sensored operation, you would need to purchase a brushless sensored ESC such as the Castle Mamba X instead. The sensored wiring in the motor simply remains unused when paired with the Sidewinder 4.
- What is Cryo-Drive technology and why does it matter for my RC truck? — Cryo-Drive is Castle's proprietary thermal management system combining advanced software algorithms with precision fluid dynamics engineering. It actively reduces ESC operating temperatures during use, meaning your speed controller runs cooler throughout long driving sessions. Cooler temperatures translate directly to longer runtimes without thermal throttling, more consistent power delivery, and the ability to use more aggressive gearing without risking overheating. For competitive drivers and enthusiasts who run extended heat races or bash sessions, Cryo-Drive significantly improves performance and reliability compared to previous generation ESCs like the Sidewinder 3.
- Is this ESC truly waterproof, and can I splash in puddles with my RC short course truck? — The Sidewinder 4 features a waterproof ESC design with a splash-resistant 30mm cooling fan, meaning it can safely handle dusty, muddy and damp conditions typical of UK RC tracks and fields. However, Castle specifies it is not intended for operation whilst fully submerged in liquid. If you do operate it in wet conditions, rinse the entire vehicle with fresh water after use to remove dirt and corrosives, then fully dry all components. This design provides excellent weather resistance for UK outdoor RC racing without the performance penalties of heavier enclosures.
- What makes the Sidewinder 4 different from the Sidewinder 3, and should I upgrade? — The Sidewinder 4 is the first in this product line to feature Cryo-Drive technology, delivering significantly cooler running temperatures and improved thermal management compared to the Sidewinder 3. This translates to longer runtimes, more consistent power output and the ability to run more aggressive gearing. The new ESC case design maximises cooling fan efficiency, and the electrical and software architecture has been refined for smoother sensorless startups. If you're running the Sidewinder 3 and experience thermal throttling, run extended sessions, or want the latest technology, upgrading is worthwhile. For casual users, the Sidewinder 3 remains functional, but the Sidewinder 4 offers clear performance advantages.
- Can I programme settings without buying additional hardware? — Yes, you can programme six common adjustable settings directly through your RC transmitter without any additional equipment. For more comprehensive customisation and software updates, you'll need the optional Castle Link USB Adapter or Field Link Card (both sold separately). This flexibility means beginners can get started immediately with transmitter-based programming, whilst advanced users and competitive drivers can unlock the full software suite through optional accessories.
- What is the BEC output, and will it power my servo? — The Sidewinder 4 provides a fixed 5.0 volt BEC output with a peak current rating of 2.0 amps. This is sufficient to reliably power standard digital servos and modern high-torque digital servos used in 1/10 scale short course and stadium trucks. The 2 amp capacity provides headroom for servo operation without voltage sag that could compromise steering precision. If you're running multiple high-draw servos, ensure the total current draw remains within the 2 amp limit, or consider using an external servo power supply.
- What vehicles is this combo suitable for in the UK RC market? — This combo is specifically engineered for 1/10 scale short course trucks (SCT) weighing up to 6.5 lbs running 2S LiPo, and lighter 1/10 scale 2WD stadium trucks and buggies running up to 3S LiPo. It is not designed for 4WD buggies, monster trucks, crawlers or other vehicle types. The 3800Kv motor rating and ESC power rating are optimised for these specific platforms. Always verify your vehicle's weight, drivetrain configuration and motor shaft compatibility (5mm) before ordering.
- Does this combo come with a receiver, battery and charger? — No, this combo includes only the ESC, motor, quick start guide, gearing chart and decals. You will need to source separately: a receiver compatible with your transmitter system, a 2S or 3S LiPo battery pack (and charger), servo(s), a pinion gear, and ensure your vehicle chassis is compatible with 5mm shaft motors. This modular approach allows you to choose components that suit your specific vehicle and radio system.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Castle Sidewinder 4 Waterproof Brushless ESC and 1410-3800Kv 5mm Shaft Motor Combo for 2WD SCT and Stadium Truck Builds – P-CC010-0164-06 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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