Overview
The ARRMA 1/8 KRATON 6S EXB 4X4 RTR is the ultimate ready-to-run speed monster truck for bashers who demand extreme performance, ballistic velocity, and over-the-top off-road action. This latest evolution of the iconic KRATON platform comes fully loaded with enhanced upgrades that make it more rugged and driver-friendly than ever before. Whether you're an intermediate to experienced RC enthusiast searching for a high-performance brushless RC monster truck in the UK, the KRATON 6S EXB delivers jaw-dropping 65+ mph speeds combined with genuine durability for serious bashing sessions on dirt, gravel, and grass terrain.
With its menacing black matte and gloss finish, aggressive high-downforce wing, and imposing stance, the KRATON 6S EXB cuts an intimidating figure off-road. Yet despite its fearsome appearance, everyday maintenance is straightforward thanks to the innovative quick-release, clipless body retention system that provides fast, hassle-free chassis access whilst doubling as protection against body punch-through. This ready-to-run RC car UK model arrives fully assembled and equipped with professional-grade electronics, so you simply need to add a compatible LiPo battery and charger to begin your bashing adventure.
ARRMA has engineered the KRATON 6S EXB specifically for bashers who crave big air and unrelenting ground-pounding performance. Every component—from the 7075 T6 anodized aluminium chassis to the EXtreme Bash-hardened suspension system—contributes to high-speed confidence, responsive handling, and the durability needed to survive repeated high-impact impacts and aggressive driving.
Key Features
- EXtreme Bash 7075 T6 Anodised Aluminium Chassis and Components — The laser-etched 3mm chassis plate utilises aerospace-grade 7075 T6 anodised aluminium, providing exceptional rigidity and strength without excessive weight. This premium material resists bending and warping during extreme bashing, ensuring your truck maintains precision handling even after countless jumps and impacts. Red-anodised front and rear bulkheads, split tower-to-tower centre braces, and heavy-duty arms throughout the chassis deliver virtually unstoppable structural integrity.
- Spektrum Firma 150A Smart V2 Brushless ESC with IC5 Connectors — The updated B5.12 firmware delivers enhanced power delivery and punch, whilst the waterproof design protects against water ingress during wet-weather bashing. IC5 connectors provide secure, reliable power distribution to match the high-current demands of the 6S power system, ensuring zero voltage drop during aggressive acceleration and top-speed runs.
- Spektrum Firma 4074 2050Kv Brushless Motor with Cooling Fan and Heatsink — This efficient brushless motor generates massive torque and acceleration, paired with an integrated heatsink and cooling fan to maintain optimal operating temperatures during extended high-throttle sessions. The 2050Kv rating is specifically tuned for 6S LiPo performance, delivering the perfect balance of raw power and control.
- dBoots COPPERHEAD 2 Big Block Tyres on Multi-Spoke Wheels — These aggressive off-road tyres feature deep tread patterns designed for all-terrain traction across dirt, gravel, grass, and loose surfaces. Toughened wheel hubs with dual, rubber-shielded inner bearings provide additional smoothness and security, whilst the enlarged hubs resist impact damage from hard landings and aggressive cornering at speed.
- Oil-Filled Shock System with EXtreme Bash Towers — Plush, oil-filled shocks mounted on EXtreme Bash 7075 T6 anodised aluminium front and rear towers soak up bumps and absorption, absorbing landing impacts and maintaining suspension compliance over rough terrain. Emulsion shock caps and M4 shock standoffs add durability and prevent fluid leakage during extreme bashings.
- Spektrum S665 High-Torque Digital Servo with Steel Gears — Rated at 20kg of torque, this waterproof metal-geared servo delivers the muscular steering response needed to command the truck at full speed. Steel gears resist stripping under load, whilst the servo's precision ensures responsive handling feedback through the Spektrum SLT3 transmitter.
- Heavy-Duty All-Metal Drivetrain — Durable steel driveshafts, all-metal differential outdrives, and all-metal gearbox internals create a reliable, impact-resistant drivetrain engineered to withstand the punishing forces of high-speed bashing. Three-gear differentials provide optimal traction without sacrificing speed.
- Redesigned Sliding Servo Saver — The KRATON 6S EXB features an updated servo saver mechanism that reduces play and offers greater activation torque, resulting in precise steering control and superb driving feedback even during aggressive manoeuvres and high-speed cornering.
- Spektrum 2.4GHz SLT3 Transmitter with Throttle Limiting — The included high-quality 3-channel transmitter is perfect for drivers of all experience levels. Its throttle limiting feature allows new drivers to safely limit maximum speed to 50% or 75%, building confidence and control skills before unleashing full performance. Four AA batteries are included.
- Spektrum SR315 Dual Protocol Receiver — This 3-channel receiver supports multiple Spektrum protocols, ensuring compatibility with the SLT3 transmitter whilst offering flexibility for future upgrades and customisation.
- Quick-Release, Clipless Body Retention System — The iconic streamlined KRATON body attaches without clips, allowing one-handed removal for rapid chassis access and maintenance. This system also prevents body punch-through during extreme landings and hard impacts.
- EXtreme Bash Front Bumper and Steel Rear Skid Plate — Protective bumpers and skid plates shield critical components from impact damage, extending the lifespan of your investment and reducing maintenance downtime between bashing sessions.
- Steel Turnbuckles Throughout — Heavy-duty steel steering and rear turnbuckles enable the KRATON 6S EXB to withstand extreme off-road bashing at 65+ mph top speeds, whilst allowing fine-tuning of suspension geometry for optimal handling characteristics.
Technical Performance
The ARRMA KRATON 6S EXB 4X4 is engineered as a serious performance machine for intermediate to experienced bashers. Measuring 596mm in length, 466mm in width, and 216mm in height with a wheelbase of 377mm, this 1/8 scale monster truck delivers commanding presence and stability across challenging terrain. Weighing 5.61kg fully assembled, the truck achieves an ideal weight distribution that balances momentum for big air performance with control precision for technical driving. The Spektrum Firma 4074 2050Kv brushless motor paired with the Spektrum Firma 150A Smart V2 ESC with updated B5.12 firmware produces ballistic speeds exceeding 65 mph, making this one of the fastest ready-to-run RC monster trucks available in the UK market. The motor features an ARRMA heatsink and cooling fan to maintain optimal temperatures during sustained high-throttle runs. The truck utilises a 6S LiPo power system (compatible with 4S and 6S batteries), delivering massive voltage and current capacity for sustained acceleration and top-end speed. The brushless drivetrain incorporates a 16T pinion meshed with a 50T spur gear, providing direct power transfer from motor to wheels through robust steel driveshafts and all-metal differential outdrives. The independent suspension system features coil-over oil-filled shocks with EXtreme Bash 7075 T6 anodised aluminium towers front and rear, ensuring smooth ride quality even at extreme speeds and impact scenarios. The 17mm wheel hexes accept a wide range of aftermarket wheels and tyres, whilst the included dBoots COPPERHEAD 2 big block tyres provide exceptional all-terrain traction. Water-resistant electronics protect against moisture ingress, though the truck is not fully submersible. The integral braking system is controlled through the ESC, providing smooth deceleration and reverse capability. All IC5 connectors ensure reliable power distribution, whilst the Spektrum 2.4GHz SLT3 radio system provides responsive control across distances suitable for large-scale outdoor bashing sessions.
What's in the Box
- KRATON 6S EXB 4X4 1/8 Scale Speed Monster Truck RTR (fully assembled, ready to run)
- Spektrum Firma 150A Smart V2 Brushless 6S ESC with updated B5.12 firmware and IC5 connectors
- Spektrum Firma 4074 2050Kv Brushless Motor
- Spektrum 2.4GHz SLT3 3-Channel Transmitter
- Spektrum SR315 3-Channel Dual Protocol Receiver
- Spektrum S665 20kg Waterproof Metal-Geared Digital Servo
- 25T Spline Aluminium Servo Horn
- Four AA Transmitter Batteries
- Moulded Hand Tools (2.0mm and 2.5mm)
- Instruction Manual (multilingual)
What You Need to Complete
- LiPo Battery Pack — Either two 2S packs, two 3S packs, one 4S pack, or one 6S hardcase LiPo with EC5 or IC5 connector (sold separately). The 6S configuration delivers maximum performance and speed.
- Battery Charger — A compatible LiPo balance charger with appropriate voltage rating for your chosen battery configuration (sold separately).
- Charging Safety Bag — A LiPo safety sack or charging bag to safely charge and store batteries (sold separately).
Frequently Asked Questions
- What is the top speed of the ARRMA KRATON 6S EXB, and is it suitable for high-speed bashing? — This brushless RC monster truck is capable of exceeding 65 mph with a 6S LiPo battery, making it one of the fastest ready-to-run models available for UK buyers. It is specifically engineered for intermediate to experienced bashers who crave extreme speed and aggressive off-road action. The powerful 2050Kv motor and 150A ESC deliver ballistic acceleration, whilst the robust EXtreme Bash chassis and suspension are designed to absorb the impacts inherent in high-speed bashing. This truck excels at jumps, ramps, and aggressive terrain.
- Is the KRATON 6S EXB RTR suitable for beginners, or do I need experience to operate it? — ARRMA rates this model as suitable for intermediate to experienced drivers. Whilst the truck is ready to run (RTR) and includes everything except battery and charger, the extreme speed (65+ mph) and power require competent driving skills to operate safely. However, the included Spektrum SLT3 transmitter features a throttle limiting function that allows beginners to restrict speed to 50% or 75%, building confidence before unlocking full performance. We recommend experienced RC hobbyists or those with prior RC vehicle experience operate this truck at full power.
- What battery does the KRATON 6S EXB need, and how long does it run? — The truck is compatible with 4S and 6S hardcase LiPo batteries. A 6S battery (22.2V nominal) delivers maximum performance and top speed, whilst 4S batteries (14.8V) provide more conservative performance. Typical runtime is 10-15 minutes per battery pack at full throttle, depending on driving style, terrain, and battery capacity. Battery packs are sold separately; RC Model Shop offers power bundles combining batteries, chargers, and safety equipment for convenience.
- What makes this model different from other 1/8 scale RC monster trucks available in the UK? — The KRATON 6S EXB distinguishes itself through several innovations: the EXtreme Bash programme delivers premium materials like 7075 T6 anodised aluminium throughout the chassis, bulkheads, and shock towers for superior durability; the Spektrum Firma 150A Smart V2 ESC with updated B5.12 firmware provides enhanced power delivery and reliability; the Spektrum S665 steel-geared servo offers high-torque, waterproof steering precision; and the quick-release, clipless body retention system allows tool-free chassis access. The combination of these features, coupled with 65+ mph ballistic speed and aggressive styling, makes the KRATON 6S EXB exceptional value for serious UK bashers.
- Is the KRATON 6S EXB waterproof, and can I use it in wet conditions? — The ESC and receiver are water-resistant, providing protection against splashes and light rain. However, the truck is not fully waterproof and should not be submerged or driven through water crossings. Water-resistant electronics are designed to withstand typical mud and wet grass bashing, but extended water exposure may damage components. Always dry the truck thoroughly after wet-weather use and inspect electronics for moisture.
- Does the KRATON 6S EXB come with a battery and charger, or are these sold separately? — The truck is ready to run (RTR) but requires a separate LiPo battery pack and compatible charger. These are essential items sold separately. RC Model Shop offers complete power bundles combining the truck with matched battery, charger, balance leads, and safety equipment, providing all necessary items to get bashing immediately.
- What is the EXtreme Bash (EXB) upgrade programme, and how does it improve durability? — EXtreme Bash is ARRMA's premium durability initiative, incorporating reinforced materials and engineering throughout the chassis. EXB-hardened components include 7075 T6 anodised aluminium bulkheads, shock towers, and braces; heavy-duty suspension arms and plates; toughened wheel hubs with dual rubber-shielded bearings; and upgraded drivetrain internals. These upgrades collectively enhance impact resistance, reduce wear, and extend the operational lifespan of the truck during aggressive bashing.
- What is included in the hand tools, and will I need additional tools for setup and maintenance? — The truck includes moulded hand tools with 2.0mm and 2.5mm hex heads, suitable for basic adjustment and maintenance tasks such as servo horn adjustment and motor timing. For comprehensive maintenance and tuning, you may benefit from a dedicated RC tool kit including additional hex sizes, screwdrivers, and lubricants, though these are optional.
- Can I upgrade components on the KRATON 6S EXB, and what aftermarket support is available? — Yes, the KRATON platform enjoys extensive aftermarket support with replacement and upgrade parts available from ARRMA and numerous RC retailers. Upgradeable components include tyres and wheels, shocks, servo, motor, ESC, and numerous chassis parts. The exploded-view diagram and parts catalogue available from ARRMA facilitate easy identification of replacement parts. RC Model Shop stocks genuine ARRMA replacement and optional parts for continued customisation.
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 1/8 KRATON 6S EXB 4X4 RTR Speed Monster Truck Black C-ARA8708V6T1 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.
Product Description of ARRMA C-ARA8708V6T1 brushless speed monster truck
The ARRMA C-ARA8708V6T1 brushless speed monster truck is a 1/8 scale electric RC car engineered for extreme off-road bashing, high-speed control, and rugged durability. Built on the EXtreme Bash (EXB) platform and powered by a 6S-capable Spektrum Smart system, this 4WD EXB basher truck delivers ballistic acceleration and a top speed of 65+ mph. From its red-anodized aluminium bulkheads to its quick-release clipless body and COPPERHEAD™ tyres, the ARRMA C-ARA8708V6T1 4WD EXB basher truck is designed for drivers who demand maximum performance and zero compromise. Whether you're launching off ramps or tearing through gravel, this monster truck is built to dominate.
Key features of the C-ARA8708V6T1 brushless speed monster truck
- EXB aluminium chassis – 7075 T6 laser-etched plate with reinforced side pods and center brace
- Smart-enabled 2050Kv brushless motor – delivers explosive torque and 65+ mph top speed
- Clipless body mount – quick-release system preserves scale realism and simplifies maintenance
- Steel driveshafts – heavy-duty drivetrain components for reliable torque transfer
- Oil-filled shocks – plush suspension mounted on EXB aluminium shock towers
- COPPERHEAD™ tyres – aggressive tread pattern for high-traction control across terrain
- Smart telemetry system – real-time diagnostics and performance monitoring via Spektrum Dashboard
How does the EXB aluminium chassis improve durability and control?
The ARRMA C-ARA8708V6T1 with EXB aluminium chassis and Smart ESC features a 3 mm thick 7075 T6 laser-etched aluminium plate reinforced with composite side pods and a multi-structured center brace system. This chassis resists flex under load, maintaining suspension geometry and drivetrain alignment during aggressive bashing. Red-anodized aluminium bulkheads and braces add structural integrity and visual impact. Combined with the high-downforce wing and strengthened wing mount, the chassis design supports high-speed stability and rugged terrain absorption, making the ARRMA C-ARA8708V6T1 brushless speed monster truck a true off-road powerhouse.
What kind of power does the Smart ESC and 2050Kv motor deliver?
The ARRMA monster truck with clipless body mount and 2050Kv brushless motor is equipped with a Spektrum Firma 4074 motor paired with a 150A Smart V2 ESC. This power system is 6S LiPo compatible and tuned for high-voltage output, delivering punchy acceleration and sustained top-end speed. The ESC features updated B5.12 firmware for improved throttle response and driving feel, while its waterproof design ensures reliability across wet and dusty conditions. IC5 connectors support high-current flow, and Smart telemetry compatibility allows real-time monitoring of voltage, temperature, and performance metrics. This setup transforms the ARRMA C-ARA8708V6T1 1/8 scale electric RC car into a high-speed, data-driven bashing machine.
How do the steel driveshafts and metal drivetrain components support off-road abuse?
The ARRMA off-road RC car with steel driveshafts and oil-filled shocks is built to handle punishing terrain. Steel driveshafts run throughout the drivetrain, connecting all-metal diff outdrives and gearbox internals. This heavy-duty configuration ensures reliable torque transfer and long-term durability, even during high-impact landings and full-throttle launches. The drivetrain is supported by a single-speed transmission with forward, brake, and reverse functionality, allowing precise control across varied surfaces. Whether you're navigating rocky trails or blasting through loose dirt, the drivetrain components are engineered to withstand the demands of 6S brushless power.
What makes the suspension system ideal for high-speed bashing?
The ARRMA C-ARA8708V6T1 4WD EXB basher truck features independent suspension with oil-filled coil-over shocks mounted on EXB 7075 T6 aluminium shock towers. These dampers absorb terrain impacts and maintain tyre contact for consistent grip. The EXB shock caps and M4 standoffs provide both visual appeal and functional resilience. Suspension geometry is tuned for stability and responsiveness, allowing the truck to handle jumps, bumps, and uneven terrain with confidence. Combined with the wide stance and reinforced arms, the suspension system supports aggressive driving and smooth landings, making the ARRMA C-ARA8708V6T1 brushless speed monster truck a true bash-ready performer.
How do the COPPERHEAD™ tyres improve traction and handling?
The ARRMA C-ARA8708V6T1 brushless speed monster truck is equipped with dBoots COPPERHEAD™ 2 tyres mounted on multi-spoke wheels. These tyres feature a tough off-road tread pattern that grips loose surfaces and maintains directional control at high speeds. The wheel hubs are enlarged and toughened with dual, rubber-shielded inner bearings for added smoothness and security. Whether you're racing across gravel, grass, or packed dirt, the tyres provide the traction needed to unleash the full potential of the 2050Kv motor. Their aggressive styling complements the truck’s rugged body, reinforcing the ARRMA brand’s reputation for scale realism and performance.
Is the ARRMA C-ARA8708V6T1 suitable for expert-level RC enthusiasts?
Designed for intermediate to experienced drivers, the ARRMA C-ARA8708V6T1 4WD EXB basher truck offers a complete package of speed, durability, and control. The included Spektrum SLT3 transmitter features throttle limiting for new users, while the SR315 receiver supports dual protocol compatibility and Smart telemetry. The metal gear servo delivers 277 oz-in of torque, ensuring precise steering under load. With its EXB-hardened components, waterproof electronics, and quick-release body design, this truck is built for serious off-road action. For those seeking the best ARRMA monster truck with COPPERHEAD tyres and aluminium bulkheads, this model delivers uncompromising performance and scale style.
Whether you're launching off jumps or tearing through rough terrain, the ARRMA C-ARA8708V6T1 brushless speed monster truck is engineered to perform. From its EXB-toughened chassis and Smart-enabled power system to its adjustable suspension and aggressive tyres, every component is built for impact. Buy ARRMA C-ARA8708V6T1 RC truck with bash-ready suspension and EXB shock towers today and experience the thrill of large-scale off-road bashing.
Technical Specifications of ARRMA C-ARA8708V6T1 brushless speed monster truck
Brand, Model and Product Type
- Brand: ARRMA
- Model: C-ARA8708V6T1
- Product Type: ARRMA C-ARA8708V6T1 brushless speed monster truck, ARRMA C-ARA8708V6T1 1/8 scale electric RC car, ARRMA C-ARA8708V6T1 4WD EXB basher truck, ARRMA C-ARA8708V6T1 with EXB aluminium chassis and Smart ESC, ARRMA off-road RC car with steel driveshafts and oil-filled shocks
Dimensions
- Product Length: 59.6 cm – extended chassis supports high-speed stability and aggressive stance
- Product Width: 46.6 cm – wide track enhances cornering grip and terrain control
- Product Height: 21.6 cm – elevated structure accommodates large tyres and long-travel suspension
- Wheelbase: 37.7 cm – optimised for off-road handling and bash-ready geometry
- Weight: 5.61 kg – reinforced aluminium chassis and steel drivetrain components
- Maximum Battery Dimensions: 15.8 cm × 7.0 cm – supports high-capacity 6S LiPo configurations
Power System and Electronics
- Motor: Spektrum Firma 4074 2050Kv brushless motor – delivers explosive torque and 65+ mph top speed
- ESC: Spektrum Firma 150A Smart V2 waterproof ESC – supports 6S LiPo power and includes Smart telemetry compatibility
- ESC Features: Updated B5.12 firmware, IC5 connectors, and real-time diagnostics via Spektrum Dashboard app
- Radio System: Spektrum SLT3 2.4GHz 3-channel transmitter – includes throttle limiting and ergonomic foam wheel
- Receiver: Spektrum SR315 dual protocol – compatible with SLT and DSMR, supports Smart telemetry
- Servo: Spektrum S665 waterproof metal-gear – 277 oz-in torque for high-speed steering precision
- Servo Horn: 25T aluminium spline – reinforced for durability and precise control
Drivetrain and Transmission
- Drive System: Shaft-driven 4WD – ensures consistent traction and power distribution across all wheels
- Differential Type: 3-gear diffs with all-metal outdrives – engineered for durability and torque handling
- Gear Pitch: MOD 1 – heavy-duty gearing designed for high-load conditions
- Spur Gear: 50T – tuned for torque-heavy acceleration and terrain control
- Pinion Gear: 16T – standard gearing for balanced speed and torque
Suspension and Handling
- Suspension Type: Independent – supports aggressive terrain handling and impact absorption
- Shock Type: Aluminium-bodied, oil-filled coil-over shocks – mounted on EXB 7075 T6 aluminium shock towers
- Shock Towers: Red-anodized EXB aluminium – reinforced for high-impact durability
- Turnbuckles: Steel – heavy-duty components for steering and rear suspension stability
- Servo Saver: Sliding design – reduces play and improves activation torque
Tyres and Wheels
- Tyres: dBoots COPPERHEAD™ 2 – aggressive tread pattern for high-traction control across terrain
- Wheel Type: Multi split-spoke – complements scale truck styling and supports off-road traction
- Wheel Hex Size: 17 mm – compatible with large-scale wheel configurations
- Wheel Hubs: Toughened with dual rubber-shielded inner bearings – ensures smooth rotation and added durability
Chassis and Structural Components
- Chassis Material: 3 mm laser-etched 7075 T6 aluminium – reinforced with composite side pods and center brace
- Body Mount: Quick-release clipless system – preserves scale realism and allows fast removal
- Body Style: Factory-finished KRATON – black matte and gloss finish with high-downforce wing
- Wing Mount: Strengthened one-piece – supports aerodynamic stability and impact resistance
- Water Resistance: Yes – electronics and drivetrain components are sealed for all-weather operation
Performance and Speed
- Top Speed: 65+ mph – achievable with 6S LiPo and standard gearing
- Power System: 6S brushless – delivers high-voltage output and sustained acceleration
What’s in the Box
- 1 × ARRMA C-ARA8708V6T1 brushless speed monster truck (fully assembled)
- 1 × Spektrum Firma 150A Smart V2 ESC (installed)
- 1 × Spektrum Firma 4074 2050Kv brushless motor (installed)
- 1 × Spektrum S665 waterproof metal-gear steering servo (installed)
- 1 × Spektrum SLT3 2.4GHz transmitter
- 1 × Spektrum SR315 3-channel dual protocol receiver
- 1 × 25T aluminium servo horn
- 4 × AA transmitter batteries
- 1 × Instruction manual
- 1 × Molded hand tools (2.0 mm and 2.5 mm)
What You Require
- 2 × 2S, 2 × 3S, 1 × 4S, or 1 × 6S hardcase LiPo battery (minimum 5000mAh recommended)
- 1 × Compatible LiPo charger
- 1 × LiPo charging bag
Sold Separately
- Optional LED light set – compatible with factory light buckets
Warranty
- Manufacturer warranty applies for defects in materials and workmanship as per manual terms
