The Castle Sidewinder 8 is perfect for entry level, weekend basher, or serious road warriors seeking the benefits of an affordable brushless upgrade.Capable of 2-6S LiPo, with an 8 amp peak BEC, the Sidewinder 8 is the perfect upgrade for 1:8 scale buggies, truggies and on-road vehicles as well as 1:10 scale monster trucks weighing up to 11 lbs. It can also work as a great upgrade ....

Product Overview Mamba Monster X is our latest 1:8 scale and Monster truck controller capable of 2S - 6S LiPo, with an 8 amp peak BEC - and, it's waterproof*, so you can run your vehicle through morning dew, across soggy snow, or a muddy trail. This is the perfect upgrade for 1:8 scale buggies, truggies and on-road vehicles as well as 1:10 scale monster trucks weighing up to 15....

Product Overview Drive fearlessly and punch that throttle! The MAMBA MONSTER X 8S utilizes Castle's breakthrough technology CRYO-DRIVE. By reducing the rate at which the ESC heats up and removing heat more efficiently, your setup will be able to handle higher gear ratios, in heavier vehicles, with longer runs. These software advancements work in parallel with a unique open ho....

Product Overview Meet the COPPERHEAD 10 PERFORMANCE ESC. It takes to the open road as well as it takes to no road at all. This completely new design rounds out our 1:10 scale offerings, positioned between the SIDEWINDER 4 as the entry-level upgrade and the MAMBA X as the extreme performance option. The COPPERHEAD 10 includes CRYO-DRIVE TECHNOLOGY, SENSORED MOTOR SUPPORT and DATA....

Product Overview Engineered from the ground up, the Mamba XLX2 is packed with a potent combination of hardware and software advancements, sensored performance, CRYO-DRIVET and waterproof design that will set a new standard for high performance power systems. The Mamba XL family is well known for its extreme performance capabilities. The XLX2 pays homage to the legacy of its prede....

Overview Introducing the Cobra 8, Castle's next generation electronic speed controller for surface applications. As the inaugural product in a new line, the Cobra 8 is engineered with cutting-edge technology tailored specifically for 1:8th scale vehicles weighing up to 6.8Kg (15 lbs). Note: The Cobra 8 ESC is not intended for drag racing applications. The Cobra 8 b....

Overview Castle are thrilled to introduce the Cobra 10, their next generation electronic speed controller (ESC) for surface applications. The Cobra 10 boasts a state-of-the-art 32-bit, dual-core processor, ushering in a new era of precision and performance. Its enhanced data logging capabilities offer extended recording times, faster sampling rates, and a....

Overview Castle is proud to announce the highly anticipated COBRA 5 HV- our most powerful surface ESC to date. Building on the success of the Cobra 5, the new HV model raises the voltage ceiling to 12S LiPo (50.4V) and is engineered to dominate 1:5th and 1:4th scale RC vehicles up to 50 lbs. In The Box Cobra 5 HV ESC 400mm direct connect....

Overview Building on the success of the COBRA 10 and COBRA 8, we are excited to announce the release of the all-new COBRA 5, engineered for 1/7th and 1/5th scale high-performance RC applications! The COBRA 5 is designed to deliver precision, durability, and unmatched power-handling capabilities. New tuning parameters include adjustable braking curves and independent....

ESC Programming Easy to program via your transmitter or compact program card. No need to haul around a PC ....

Product Details The Spektrum Firma Sensored Smart ESC is specifically engineered to be used with 6th scale Crawlers and Scalers, such as the Axial SCX6. Featuring advanced Smart connectivity, professional drag brake performance and torque control, all while being fully waterproof. Key Features 2S-4S LiPo Compatible Waterproof ESC ....

Smart Technology - More connected for more confidence and control Spektrum™ Smart Technology is about offering a higher connection to your hobby. It's an RC ecosystem that puts you in complete control while making vital components of your model easier to use than ever before. Smart technology ensures th....

Overview Like every component in the SpektrumT Smart ecosystem, FirmaT Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics - together, creating the best-performing RC system for your vehicle imaginable. This 150A brushless ESC gives your large-scale vehicle the ultimate drive while feeding real-time tel....

Smart Technology - More connected for more confidence and control Spektrum™ Smart Technology is about offering a higher connection to your hobby. It's an RC ecosystem that puts you in complete control while making vital components of your model easier to use than ever before. Smart technology en....

Product Features Smart all-in-one telemetry Fast, powerful 32-bit ARM M4 processor Added inline capacitor for additional ESC protection Waterproof Multiple options for easy programming: Button programming Smart ESC Programming Box SmartLink USB Updating and Programmer application Multi-point protection: O....

Overview Like every component in the SpektrumT Smart ecosystem, FirmaT Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics, creating the best-performing RC system for your vehicle. Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providin....

Product Features Smart all-in-one telemetry Fast, powerful 32-bit ARM M4 processor Waterproof Multiple options for easy programming: Button programming Smart ESC Programming Box SmartLink USB Updating and Programmer application Multi-point protection: Over-current protection Automatic LiPo low-voltage cut....

Features Enhanced electronic design and hardware for improve reliability Black Edition Case Expanded programmable options (see manuals and support for more information) Smart all-in-one telemetry Fast, powerful 32-bit ARM M4 proces....

Product Features Smart all-in-one telemetry Fast, powerful 32-bit ARM M4 processor Waterproof Multiple options for easy programming: Button programming Smart ESC Programming Box SmartLink USB Updating and Programmer application Multi-point protection: Over-current protection Automatic LiPo low-voltage cu....

Product Overview The Mamba Micro X2 is a refresh of our popular 1:18 scale Mamba Micro X. This new ESC increases the maximum input voltage to 4s. We also added DATA LOGGING and our CRYO-DRIVET TECHNOLOGY; CryoDrive allows the ESC to run cooler and more efficiently at partial throttle. Like its predecessor, it boasts an 2 amp peak BEC,waterproof* and has SENSORED MOTOR SUPPORT. T....

The Mamba Micro X2 is a refresh of our popular 1:18 scale Mamba Micro X. This new ESC increases the maximum input voltage to 4s. We also added DATA LOGGING and our CRYO-DRIVE TECHNOLOGY; CryoDrive allows the ESC to run cooler and more efficiently at partial throttle. Like its predecessor, it is waterproof* and has SENSORED MOTOR SUPPORT. This is the perfect upgrade for 1:18th sca....

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 th....

Get wet! Castle's Sidewinder ESC, the leading 1/10th scale sport brushless ESC, is now waterproof. The new Sidewinder 3 can power crawlers on water filled trails, SCTs through rain soaked parking lots, and AWDs on rips across muddy fields. Drivers can follow their irresistible urges to drive in the mud or stomp their truck in puddles without damaging their controller. Designed f....

Spektrum Firma 30A Brushless Smart ESC / 4500Kv Motor Combo Overview Feature-packed SpektrumT FirmaT Smart ESCs deliver power and intelligence all-in-one, with no additional modules or links required. This waterproof, 30A brushless marine ESC drives your mini through almost any condition imaginable, with explosive acceleration and ultra-smooth performance - wh....

Overview Like every component in the SpektrumT Smart ecosystem, FirmaT Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics, creating the best-performing RC system for your vehicle. Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providin....

Firma 30A Brushless Smart ESC Overview Feature-packed SpektrumT FirmaT Smart ESCs deliver power and intelligence all-in-one, with no additional modules or links required. Like every component in the SpektrumT Smart ecosystem, FirmaT Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics....

Spektrum Firma 80A Brushless Sensored Smart ESC, Outrunner Overview Feature-packed FirmaT Smart ESCs deliver power and intelligence all-in-one, with no additional modules or links required. The SpektrumT Firma Smart 80 Sensored/Sensorless Brushless ESC: Outrunner is a great choice for 1/10th scale crawlers and scalers running on 2S - 4S LiPo power. This Smart ....

Overview Like every component in the SpektrumT Smart ecosystem, FirmaT Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics, creating the best-performing RC system for your vehicle. Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providin....

Spektrum Firma 130A Brushless Smart ESC Overview Like every component in the Spektrum™ Smart ecosystem, Firma™ Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics, creating the best-performing RC system for your vehicle. Firma Smart ESCs do much more than regulate power. They function li....

Spektrum Firma 250A Brushless Smart ESC Overview Like every component in the Spektrum™ Smart ecosystem, Firma™ Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics, creating the best-performing RC system for your vehicle. Firma Smart ESCs do much more than regulate power. They function li....

Spektrum Firma 45 Smart Lite Brushless ESC Overview Like every component in the Spektrum™ Smart ecosystem, Firma™ Smart ESCs combine "plug-and-play" simplicity with the ability to communicate with other Smart electronics, creating the best-performing RC system for your vehicle. Firma Smart ESCs do much more than regulate power. They function....