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The ARRMA® KRATON™ 6S BLX 4WD Speed Monster Truck reaches a mind blowing 60+ mph, driven by its 6S capable brushless power system and durable design. Now comes complete with the 2.4GHz Spektrum™ STX2® radio system, it's fully equipped for fast, all-terrain bashing!

To put so much incredible speed into the hands of intermediate-level bashers, ARRMA® has outfitted the new KRATON™ Speed Monster Truck with a potent 2050Kv brushless motor. It's paired with the BLX185 ESC, featuring 1C5™ connectors and compatible with standard EC5™ connectors. Bashing is a "go" even through mud and snow, thanks to waterproof electronics. Add your favourite 4S or 6S LiPo battery and watch this monster truck smash your speed expectations, especially when running with the optional recommended pinion gear.

With adjustable oil-filled shocks soaking up the bumps, the KRATON™ 6S BLX 4WD Speed Monster Truck blasts over dirt, asphalt, grass - all terrain and all conditions. The shocks are mounted on black-anodised aluminium towers. New, multi-split spoke wheels come outfitted with super-aggressive, multi-surface DBoots® COPPERHEAD 2 tyres. A high down force wing helps keep the vehicle grounded. Everything contributes to confident control and responsive handling at thrilling high speeds.

For the durability needed to support intense brushless performance, ARRMA® uses a strong anodised aluminium chassis as the foundation. A centre body support and new aluminium centre brace plus composite chassis side pods add more strength. All-metal diff outdrives and gearbox internals plus durable steel driveshafts provide a reliable, heavy-duty drivetrain that holds up to extreme, high-speed bashing. A new "never loose" aluminium steering servo saver and "never pop" ball ends supply more precision, reliability and confidence.

ARRMA® holds your maintenance downtime to the minimum with an efficient, driver-friendly design. A sliding mount allows quick, hassle-free motor access. The centre diff is easy to reach and can be removed by taking out just seven bolts. Topping it all off is a monster truck body with streamlined good looks, featuring a red/black or blue/black trim and ultra-detailed decals.

The ready-to-run KRATON™ 6S BLX 4WD Speed Monster Truck includes the new Spektrum™ 2.4GHz STX2® transmitter and comes with its SRX200 receiver and ADS-15M metal-geared servo already factory-installed. The only required items are a 4S or 6S LiPo battery, compatible charger, safe charging bag, and 4 x AA transmitter batteries. ARRMA® recommends the Dynamite® Powerstage™ Stage 6 bundle (DYN1540), which includes a Passport™ Ultra P2 100W AC/DC Multi-Charger and two Reaction HD 5000mAh 3S hard case LiPo batteries with EC5™ connectors.


New body, styling, and print scheme in red/black or blue/black with ultra-detailed decals and a high down force wing with strengthened wing mounts


The aluminium centre brace maximizes chassis durability


New DBoots® Copperhead 2 tires with more durable multi-split spoke wheels


Sliding motor mount for easy meshing and removal, and easy-access 7-bolt centre diff


New servo saver design that will never loosen, for maximum servo protection.

Never-Pop Steering Ball Links

Captured steering ball ends that will never pop off

Never-Loose Hub Nuts

New, updated hubs and hub nut o-rings that will never come loose


Anodised aluminium shock absorbers feature adjustable collars and shock cap protectors


  • Waterproof and dust proof design [1]
  • 150A, 6S LiPo ready (3S, 4S and 6S LiPo compatible)
  • Fitted with reliable IC5™ connectors (EC5™ compatible)
  • Integrated fan for reduced heat during extreme running
  • High quality 10awg wires
  • Low voltage cut off and thermal overload protection
  • User programmable punch and brake settings
  • Capable of 60+ mph (97+ km/h) speeds [2]

BLX4074 2050kV Brushless Motor

  • Beautifully etched aluminium can
  • 4-pole construction for smooth and consistent power
  • Gold bullet connectors for reliable and efficient connection
  • Finned motor can for increased heat dissipation
  • Super strong 5mm shaft
  • Capable of 60+ mph (97+ km/h) speeds [2]


  • Complete 2.4GHz radio system including a 2Ch waterproof receiver [3]
  • Built-in 3-position throttle limiter
  • Steering & throttle rate & trim adjustments with throttle and steering reversing
  • FHSS 2.4GHz protocol[4] offers extended range and interference free performance


  • Strong metal gears used throughout
  • Waterproof and dust proof case [5]
  • 25 tooth output spline
  • Torque: 14kg-cm @6V
  • Speed: 0.16sec/60° @6V
  • Dimensions: 40x38x20mm (Industry standard size)

[1] For details on waterproof standards, please refer to the product instruction manuals.

[2] Speed achievable in optimum conditions on 6S LiPo with optional pinion gear.

[3] For details on waterproof standards, please refer to the product instruction manuals.

[4] Not compatible with DSM, DSM2 or DSMR 2.4GHz protocol

[5] For details on waterproof standards, please refer to the product instruction manuals.


  • Ready-to-run
  • Extremely durable
  • Fast, 60+ mph speed potential *
  • 150A, 6S LiPo ready (3S, 4S and 6S LiPo compatible)
  • Anodised aluminium chassis
  • Centre body support
  • Aluminium centre brace
  • Strong composite chassis side pods
  • Heavy-duty drivetrain
  • All-metal diff outdrives and gearbox internals
  • Durable steel driveshafts
  • Easy-access sliding motor mount
  • 7-Bolt centre diff removal
  • Never-pop ball ends
  • Never loose red aluminium servo saver
  • Oil-filled adjustable shocks
  • Black anodised aluminium front and rear shock towers
  • Body print style in red/black or blue/black
  • Ultra-detailed decals
  • High down force wing
  • Multi-split spoke wheels and DBoots® COPPERHEAD 2 tires
  • Super-durable wheel hubs
  • Hub nut O-rings
  • Spektrum™ 2.4GHz STX2® Radio with SRX200 Receiver
  • BLX4074 2050Kv brushless motor
  • BLX185 waterproof 4S/6S ESC (fitted with IC5™ connector and EC5™ compatible)**
  • ADS-15M waterproof 15kg-cm metal-geared servo (195 oz-in @ 6V)**
  • 2-year limited warranty (see website for details).

* Speed achievable in optimum conditions on 6S LiPo with optional pinion gear

** For details on waterproof standards, please refer to the product instruction manuals

What's in the Box?

  • (1) ARRMA KRATON 6S BLX 4WD Speed Monster Truck RTR
  • (1) Spektrum 2.4GHz STX2 Radio Transmitter
  • (1) Product Manual


  • Approximate Assembly Time: No assembly required
  • Ball Bearings: Full ball bearing drivetrain
  • Body: Trimmed and painted moulded polycarbonate, new body mounts for better adjustability and durability
  • Charger: Required, compatible with selected battery
  • Chassis: 0.12" (3mm) thick 6061-T6 aluminium
  • Completion Level: Ready-To-Run
  • Differential: Three, metal gear, front & rear filled with 10,000cst silicone diff oil, centre filled with 100,000cst silicone diff oil
  • Drivetrain: 4WD Shaft Drive
  • Final Drive Ratio: 17.92:1
  • Front Shock Spring Rate: 1.09N/mm
  • Gear Pitch: 1.0 Module
  • Ground Clearance: 1.85" (47mm)
  • Height: 7.68" (195mm)
  • Internal Gear Ratio: 4.3:1
  • Length: 23.39" (594mm)
  • Max Battery Dimensions: 6.22 x 2.76 x 1.89" (158 x 70 x 49mm)
  • Motor Size: 4074, 2050Kv, 4074, 2050Kv, sliding mount for easier maintenance
  • Motor Type: Non-sensored brushless
  • Pinion: 12T
  • Radio: Spektrum STX2 2-channel
  • Rear Shock Spring Rate: 0.87N/mm
  • Servos: Waterproof high torque
  • Shock Type: Oil-filled, coil-over springs, filled with 1000cst silicone shock oil
  • Size/Scale: 1/8
  • Speed Control: BLX185 150A w/cooling fan, 6.0V/3A continuous output, 12A max, IC5 battery connector
  • Spur Gear: 50T
  • Suspension: Independent
  • Tyre Diameter: 6.65" (169mm)
  • Tyre Tread: dBoots COPPERHEAD2 with foam inserts
  • Vehicle Type: Speed Monster Truck
  • Water-Resistant: Yes
  • Weight: 10.67lbs (4.85kg)
  • Wheel Diameter: 3.82" (97mm)
  • Wheel Hex Size: 17mm Hex
  • Wheel Type: Moulded plastic, black in colour
  • Wheel Width: Rear, 1.6" (41mm)
  • Wheelbase: 14.84" (195mm)
  • Width: 18.15" (461mm)

Needed to Complete

  • (2) 2S or 3S 35C+ 5000mAh LiPo batteries with IC5/EC5 connector or
  • (1) 4S or 6S 35C+ 5000mAh LiPo battery and harness with IC5/EC5 connectors
  • Suitable LiPo balancing charger
  • (4) AA batteries (for transmitter)
  • LiPo charging bag or case (recommended)

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£519.99 Each

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