Product Details
Ready for the next level of ARRMA RC bashing performance? The ARRMA 3S Brushless BOOST Box upgrade package comes with everything you'll need to increase the speed capabilities of any 4X2 BOOST or MEGA vehicle, including a 3S brushless motor and ESC*.
In The Box
- (1) 3S Spektrum Smart Brushless Firma 100A ESC
- (1) 3S Spektrum 3660 3200Kv Brushless Motor & ARRMA Heatsink
- (1) Assembled Power Module & Dual Slipper With 57T Mod 0.8 Sintered Spur Gear
- (1) 30mm Electric Fan & Cover
- (1) 20T Mod 0.8 SafeD Pinion
- (1) 18T Mod 0.8 SafeD Pinion
- (1) 15T Mod 0.8 SafeD Pinion
- (1) All Necessary Hardware
- (1) ARRMA BOOST 3S Brushless Upgrade Product Manual
- (1) ARRMA BOOST Decal Sheet
Introduction
Even without upgrades, ARRMA 4X2 BOOST and MEGA brushed RC vehicles are capable of reaching 30+ MPH speeds in optimum conditions and optional gearing. Now imagine what your RC basher can do after you upgrade it to brushless power using the ARRMA 3S Brushless BOOST Box option part package! The ARRMA 3S Brushless BOOST Box is a complete power module that includes a Spektrum Smart 3S ESC, Spektrum brushless motor, heatsink, and cooling fan, along with 15T, 18T, and 20T pinions to suit the different tire diameters of ARRMA 4X2 BOOST and ARRMA MEGA models. The ARRMA 3S Brushless BOOST Box also provides a QR code to an online assembly video that demonstrates simple, step-by-step installation. With ARRMA BOOST option parts, the best beginner's bashers just keep getting better as your skills grow!
Features
- BOOST your vehicle's speed potential whenever you're ready
- Includes top-quality Spektrum Smart 3S brushless ESC and brushless motor
- Step-by-step online video demonstrates easy installation
- Bonus color ARRMA BOOST decals also included
- Go from RC bashing to RC blasting!
The 3S Brushless BOOST Box is the recommended next upgrade for the following ARRMA 4X2 MEGA BOOST basher vehicles after the ARA21003 4X4 Transmission Upgrade Set.
With Spektrum Smart Battery & S120 USB-C Smart Charger:
- ARA4102SV4T1 GRANITE™ 4X2 BOOST Monster Truck RTR Orange/Black
- ARA4102SV4T2 GRANITE™ 4X2 BOOST Monster Truck RTR Blue/Black
- ARA4103SV4T1 SENTON™ 4X2 BOOST Short Course Truck RTR Green/Black
- ARA4103SV4T2 SENTON™ 4X2 BOOST Short Course Truck RTR Blue/Black
- ARA4105SV4T1 VORTEKS™ 4X2 BOOST Stadium Truck RTR Red
- ARA4105SV4T2 VORTEKS™ 4X2 BOOST Stadium Truck RTR Gunmetal
Without Battery & Charger:
- ARA4102V4T1 GRANITE™ 4X2 BOOST Monster Truck RTR Orange/Black
- ARA4102V4T2 GRANITE™ 4X2 BOOST Monster Truck RTR Blue/Black
- ARA4103V4T1 SENTON™ 4X2 BOOST Short Course Truck RTR Green/Black
- ARA4103V4T2 SENTON™ 4X2 BOOST Short Course Truck RTR Blue/Black
- ARA4105V4T1 VORTEKS™ 4X2 BOOST Stadium Truck RTR Red
- ARA4105V4T2 VORTEKS™ 4X2 BOOST Stadium Truck RTR Gunmetal
The 3S Brushless BOOST Box is also compatible with all 4X4 MEGA vehicles.
*BOOST Models will require an SLT3 receiver for compatibility (such as Spektrum SLR300).
- Product Type: 3S Brushless Upgrade Power Module System
- Manufacturer: ARRMA
- Model Number: G-ARA210005 / ARA210005
- Scale: 1/10
- Drive System: Fits 1/10 4X2 BOOST and 4X4 MEGA vehicles
- Motor Type: 3S Spektrum Brushless
- Motor Size: 3660
- Motor KV: 3200Kv
- ESC Type: Spektrum Smart Brushless Firma 100A
- ESC Current Rating: 100 Amps
- ESC Voltage: 3S LiPo compatible
- Battery Compatibility: 3S LiPo (Spektrum Smart Battery recommended)
- Battery Type: LiPo (3 cell)
- Spur Gear: 57T Mod 0.8 Sintered
- Pinion Gear Options: 15T, 18T, 20T (all Mod 0.8 SafeD)
- Power Module: Assembled with Dual Slipper Clutch
- Cooling: 30mm Electric Fan with Professional Cover
- Motor Heatsink: ARRMA Heatsink included
- Receiver Required: Spektrum SLT3 (compatible options include SLR300 3-Channel 2.4GHz)
- Radio Frequency: 2.4GHz
- Radio Channels: 3+ (depends on receiver choice)
- Installation: Step-by-step manual with QR code to online video instruction
- Hardware: All necessary assembly hardware included
- Documentation: ARRMA BOOST 3S Brushless Upgrade Product Manual
- Bonus Content: ARRMA BOOST decal sheet included
- Vehicle Compatibility: ARRMA 4X2 BOOST models (Granite, Senton, Vorteks variants); All 4X4 MEGA vehicles (V3 generation confirmed, V2 requires differential gear modifications)
- Not Compatible With: Stock NiMH Battery (SPMX33007C3H); IC3 connectors
Overview
Ready to take your ARRMA RC basher to the next level? The ARRMA 3S Brushless BOOST Box with Firma 100A ESC, 3660 3200Kv Motor, and Multi-Tooth Pinions (G-ARA210005) is the ultimate upgrade package for enthusiasts looking to dramatically increase the speed and performance of their ARRMA 4X2 BOOST or MEGA vehicles. This complete brushless power module transforms your RC car from a capable entry-level basher into a high-performance machine capable of thrilling speeds and responsive acceleration. Whether you're a weekend basher exploring the world of brushless RC cars UK or an experienced driver ready to upgrade, this all-in-one kit provides everything needed to make the transition seamless and straightforward.
ARRMA has engineered the 3S Brushless BOOST Box as the perfect next step for owners of ARRMA's popular BOOST series vehicles, including the Granite, Senton, and Vorteks models, as well as all 4X4 MEGA vehicles. The package combines professional-grade Spektrum Smart electronics with intelligent design, multiple gearing options, and comprehensive installation support. Even without upgrades, ARRMA 4X2 BOOST and MEGA brushed RC vehicles are capable of reaching 30+ MPH speeds in optimum conditions with optional gearing. Once you upgrade to the brushless power available in this BOOST Box, your RC bashing experience will be transformed entirely, delivering substantially improved acceleration, higher top speeds, and more responsive handling characteristics that serious RC enthusiasts demand.
This isn't just another parts bundle—it's a carefully curated system designed by ARRMA engineers specifically for the BOOST platform. The inclusion of three different pinion gear options (15T, 18T, and 20T) means you can fine-tune your vehicle's performance to match your driving style and local terrain, whether you prefer maximum speed or stronger acceleration. With a reputation for quality that spans decades in the RC hobby, ARRMA's BOOST upgrade range represents outstanding value for money, allowing you to progress your RC car passion without needing to purchase an entirely new vehicle.
Key Features
- Spektrum Smart 3S Brushless Firma 100A ESC — This electronic speed controller is engineered to handle serious power whilst maintaining precise throttle response and smooth acceleration curves. The 100-amp rating provides substantial headroom for the 3660 motor, ensuring reliable operation even under demanding driving conditions, and the Spektrum Smart technology integrates seamlessly with compatible batteries and chargers for enhanced performance monitoring.
- 3S Spektrum 3660 3200Kv Brushless Motor with Heatsink — The 3660 brushless motor size delivers the perfect balance between torque and top-end speed for 1/10-scale vehicles. The 3200Kv rating means this motor spins incredibly fast on 3S LiPo power, providing the aggressive acceleration and high speeds that define modern brushless RC performance. The included ARRMA heatsink keeps the motor running cool during extended driving sessions, extending component lifespan and maintaining peak performance.
- Integrated Power Module with Dual Slipper Clutch — The assembled power module includes a sophisticated dual slipper mechanism paired with a 57-tooth mod 0.8 sintered spur gear, designed to protect your transmission components from shock loads and harsh impacts common in RC bashing. This engineering approach prevents catastrophic damage when landing jumps or striking obstacles, allowing you to drive with confidence on rough terrain.
- 30mm Electric Cooling Fan — Thermal management is critical for reliable brushless operation, and this dedicated 30mm cooling fan with professional cover ensures consistent airflow over the ESC and motor during intense driving sessions. The fan keeps components at optimal operating temperatures, maintaining throttle response and extending the service life of your electronics significantly.
- Three Multi-Tooth Pinion Gearing Options — The inclusion of 15T, 18T, and 20T mod 0.8 SafeD pinions provides tremendous flexibility in tuning your vehicle's performance characteristics. The 15T pinion delivers maximum top speed for open driving areas, the 18T offers balanced acceleration and speed for general bashing, and the 20T provides stronger acceleration and better low-end torque for technical terrain and loose surfaces. You can switch between these options in minutes to adapt to different driving conditions.
- Complete Hardware and Installation Manual — Everything required for assembly is included in the box, from fasteners to cable management components. The ARRMA BOOST 3S Brushless Upgrade Product Manual provides detailed step-by-step instructions, and a QR code links to a comprehensive online assembly video that demonstrates each installation stage visually, making the upgrade process accessible even for first-time modifiers.
- Bonus ARRMA BOOST Decal Sheet — Professional-quality vinyl decals are included to customise your vehicle's appearance after the upgrade, allowing you to refresh your basher's look alongside its performance enhancement.
- BOOST Your Vehicle's Speed Potential Whenever Ready — The upgrade-friendly design of ARRMA's BOOST platform means this package perfectly integrates into existing 4X2 BOOST models, with no modification to the vehicle chassis required beyond straightforward power module installation.
- Spektrum Smart Technology Integration — The Spektrum Smart ecosystem provides advanced features including battery voltage monitoring, motor temperature sensing, and data logging capabilities when paired with compatible batteries and smart charging equipment, giving you comprehensive insight into your vehicle's performance metrics.
- Easy Installation with Online Video Support — ARRMA recognises that installation anxiety can hold back potential upgraders, which is why they've invested in crystal-clear visual installation guides. The QR code in the manual takes you directly to step-by-step video instruction, making the upgrade process straightforward for RC enthusiasts of all experience levels.
Technical Performance
The ARRMA 3S Brushless BOOST Box represents a significant leap in performance capability for 1/10-scale RC vehicles. The combination of the Spektrum Smart Firma 100A ESC and the 3660 3200Kv brushless motor creates a powertrain designed for exhilarating acceleration and impressive top speeds whilst maintaining the reliability required for bashing applications. The 100-amp ESC rating provides substantial current capacity, whilst the 3200Kv motor speed constant ensures that you'll experience transformative performance improvements over brushed systems. The motor comes equipped with an ARRMA-designed heatsink that dissipates motor heat effectively, maintaining consistent performance even during extended driving sessions. The 57-tooth mod 0.8 sintered spur gear paired with the dual slipper clutch mechanism offers durability and protection, whilst the three interchangeable pinion options—15T, 18T, and 20T—allow drivers to optimise gearing for specific track layouts, terrain types, or driving preferences. The 30mm cooling fan with professional cover actively manages thermal loads on the ESC and motor, preventing performance degradation under sustained high-throttle conditions. This complete system is engineered around 3S LiPo battery power, delivering the voltage characteristics that brushless motors require for optimal efficiency and responsiveness. The Spektrum Smart platform integration enables advanced diagnostics and data tracking when used with compatible batteries and chargers, providing valuable feedback for performance tuning. All components are manufactured to ARRMA's quality standards, ensuring reliability whether you're casual weekend bashing or engaging in more competitive driving scenarios. The modular design of the power module means installation into ARRMA 4X2 BOOST and 4X4 MEGA platforms is straightforward, preserving vehicle integrity whilst delivering revolutionary performance enhancement.
What's in the Box
- 1x 3S Spektrum Smart Brushless Firma 100A ESC
- 1x 3S Spektrum 3660 3200Kv Brushless Motor with ARRMA Heatsink
- 1x Assembled Power Module with Dual Slipper Clutch and 57T Mod 0.8 Sintered Spur Gear
- 1x 30mm Electric Fan with Professional Cover
- 1x 20T Mod 0.8 SafeD Pinion Gear
- 1x 18T Mod 0.8 SafeD Pinion Gear
- 1x 15T Mod 0.8 SafeD Pinion Gear
- 1x Complete Hardware Kit (fasteners and assembly components)
- 1x ARRMA BOOST 3S Brushless Upgrade Product Manual
- 1x ARRMA BOOST Bonus Decal Sheet
What You Need to Complete
- 3S LiPo Battery (3S Spektrum Smart Battery recommended for full Spektrum Smart ecosystem integration)
- LiPo Battery Charger (Spektrum S120 USB-C Smart Charger recommended)
- Spektrum SLT3 Receiver (required for BOOST models; compatible options include Spektrum SLR300 3-channel 2.4GHz receiver) — Note: BOOST model vehicles will require a compatible SLT3 receiver for proper functionality with this ESC and motor system
Frequently Asked Questions
- What vehicles is the ARRMA 3S Brushless BOOST Box compatible with? — This upgrade package is designed for ARRMA 4X2 BOOST vehicles including the Granite 4X2 BOOST, Senton 4X2 BOOST, and Vorteks 4X2 BOOST monster truck, short course truck, and stadium truck variants. The system is also compatible with all 4X4 MEGA vehicles (particularly the V3 generation). Important note: BOOST model vehicles require an SLT3 receiver for compatibility with this system; check your vehicle's receiver compatibility before purchasing.
- Is the ARRMA 3S Brushless BOOST Box suitable for beginners? — Absolutely. Whilst this package represents an upgrade from brushed systems, ARRMA has designed it with accessibility in mind. The straightforward mechanical installation is supported by detailed step-by-step video instructions accessible via QR code in the manual, making the upgrade process manageable for anyone with basic mechanical confidence. The performance improvement from brushless power is immediately noticeable and thrilling for drivers at all experience levels, and the multiple gearing options allow beginners to select appropriate settings whilst they develop their skills.
- What battery does the ARRMA 3S Brushless BOOST Box require? — This system is engineered exclusively for 3S LiPo batteries, which provide the voltage and power characteristics required for optimal brushless motor performance. The Spektrum Smart Brushless Firma 100A ESC is designed around 3S LiPo compatibility. For best results and full Spektrum Smart ecosystem benefits, use a Spektrum Smart Battery paired with a compatible Spektrum charger such as the S120 USB-C Smart Charger. Note: this system is not compatible with the standard NiMH battery (SPMX33007C3H) that ships with some BOOST vehicles, nor with IC3 connectors commonly found on entry-level packs—you'll need to ensure your 3S battery has compatible connectors and Spektrum Smart capability for maximum functionality.
- How much faster will my ARRMA vehicle be after upgrading to this brushless system? — Performance gains are substantial compared to brushed systems. Whilst brushed BOOST vehicles are already capable of 30+ MPH in optimum conditions, brushless power delivery provides significantly improved acceleration, more responsive throttle control, and higher overall top speeds. The exact performance increase depends on your selected gearing (15T, 18T, or 20T pinion), tyre choice, terrain, and driving technique. Start with the 18T pinion for balanced performance, then experiment with 15T for maximum speed or 20T for stronger acceleration as you develop your driving style.
- Do I need to modify my vehicle to install this upgrade? — No significant chassis modifications are required. The ARRMA 3S Brushless BOOST Box is specifically engineered to integrate into BOOST and compatible MEGA vehicles with straightforward assembly. All necessary hardware is provided, and the installation process follows clear video instruction. If you're upgrading from a brushed system, component removal and installation is mechanical rather than requiring modifications to the vehicle structure.
- What's included in the cooling fan, and why is it important? — The 30mm electric cooling fan with professional cover is a dedicated thermal management component that actively draws air across the ESC and motor during operation. This cooling is critical because brushless systems generate heat proportional to their power output, and consistent thermal management maintains throttle response reliability during extended driving sessions or hot weather operation. Without proper cooling, component temperatures can rise to levels that degrade performance or trigger thermal shutdown protection on the ESC.
- Can I use this system in wet conditions or beach environments? — Whilst the Firma 100A ESC and brushless motor represent a significant step forward in electronics quality compared to entry-level systems, no formal waterproofing rating is specified in the product documentation. For beach or wet-condition operation, we recommend discussing your specific intended use with our experts to ensure the appropriate protective measures are in place. Standard best practice for brushless electronics in wet environments includes sealing connectors and considering protective covers for sensitive components.
- What is the warranty on the ARRMA 3S Brushless BOOST Box? — Warranty details should be confirmed directly with RC Model Shop or through ARRMA's official channels, as this information wasn't specified in the product documentation. Contact our team for specific warranty coverage on the Firma 100A ESC, brushless motor, and other components included in this upgrade package.
- How does the dual slipper clutch protect my vehicle during bashing? — The dual slipper mechanism is a mechanical protection system that allows controlled slip between the motor and the spur gear under sudden shock loads. When you land a jump hard or strike an obstacle, this system prevents instantaneous transmission lock-up, which would otherwise cause snapped components. Instead, the slipper allows brief rotational slippage that absorbs impact energy, protecting your transmission gears, differentials, and driveshafts from catastrophic failure. This feature is essential for aggressive bashing and off-road driving.
- What's the difference between the 15T, 18T, and 20T pinion options, and which should I choose? — These numbers represent tooth count on the pinion gear that drives your spur gear. Lower tooth counts (15T) allow faster motor rotation, delivering maximum top speed but potentially less acceleration feel and higher motor temperatures. Higher tooth counts (20T) reduce top speed slightly but provide stronger acceleration and lower motor temperatures. The 18T pinion is an excellent balanced starting point for general bashing; experiment with other options once you understand your driving preferences and local terrain characteristics.
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 ARRMA 3S Brushless BOOST Box with Firma 100A ESC, 3660 3200Kv Motor, and Multi-Tooth Pinions – G-ARA210005 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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