In stock

With 1/5 scale size and an ARRMA®-tough design, the OUTCAST™ 8S BLX 4WD RTR is a stunt truck like no other. Its telemetry-ready Spektrum™ DX3 radio, 8S capable motor and Smart ESC deliver the torque, acceleration and speed for extreme stunting.

Driven by 8S brushless power and an ARRMA®-tough design, the OUTCAST™ 8S BLX 4WD delivers the torque, acceleration and speed you need for extreme action in 1/5 scale. This ready-to-run stunt truck comes equipped to defy gravity right out of the box. From the heavy-duty front bumper to the wheelie bar in back, it’s engineered to do it all: long, tall wheelies; tight, fast donuts; standing and aerial backflips; high leaps into the air; and more — over all terrain, in all conditions.

Just add your choice of batteries and charger and go. The OUTCAST™ 1/5 8S BLX 4WD includes a Spektrum™ DX3™ Smart transmitter and SRS6110AT AVC® (Active Vehicle Control®) receiver that take full advantage of the Spektrum™ Smart Firma™ brushless motor and ESC’s innovative telemetry capabilities. Download the free Spektrum™ Dashboard App to your mobile device and follow motor RPM, ESC temperature, receiver voltage, drive pack voltage and more data in real-time. Dial-in extra stability with the radio’s AVC® system to carve corners and nail jumps without letting up on the throttle.

Bigger than big and engineered for brute power and toughness, the ARRMA® 1/5 scale OUTCAST™ 8S BLX 4WD Stunt Truck features a metal-reinforced design that lets you blast up, over and through bruising obstacles. Metal shafts, turnbuckles and outdrives, plus all-metal internal gears, give the drivetrain and suspension system unstoppable strength. Even the included Spektrum™ S905 digital servo boasts the strength of metal gears.

The extra-rigid, laser-etched, anodized aluminum chassis plate has a multi-structured center brace system, rear lower chassis brace and strong composite chassis side pods for the durability to support extreme stunts. Extra-thick molded composite front and rear shock towers hold massive 20mm bore, oil-filled adjustable shocks to soak-up bumps and jolts.

ARRMA® keeps your maintenance time to the minimum with an efficient, driver-friendly design. A sliding, 3-bolt aluminum mount provides fast motor access. The vehicle’s front, rear and center modules and waterproof electronics module are also engineered for quick and easy access, removal and maintenance.

The ultra-tough OUTCAST™ 1/5 8S truck body arrives factory trimmed, painted and decaled. A center protection tower on the chassis interfaces with the roll cage for increased body durability. Its tough stunt truck wheels come outfitted with metal 24mm hex inserts and multi-terrain dBoots® BACKFLIP tires that provide all the traction you’ll need to flip, grip, wheelie and spin. A high downforce wing helps keep the vehicle grounded — and a wheelie bar is there for when only 90 degree wheelies will do!

Easy Maintenance

  • Easy access to front and rear differentials (5 screws)
  • Easy-to-remove Power Module (5 screws)
  • Sliding motor mount for easy motor removal (3 screws)
  • Easy-to-remove chassis braces (1 clip with retainer)
  • Easy-to-remove front, rear and center modules
  • Easy-access waterproof* electronics module
*For details on waterproof standards, please refer to the product instruction manuals.


  • Extra-rigid, laser-etched anodized aluminum chassis
  • Multi-structured center brace system
  • Rear lower chassis brace
  • Strong composite chassis side pods
  • Under-chassis skids
  • Metal inserts molded into the front steering knuckles
  • Metal wishbone covers to prevent the pivot ball from pulling out of the arms
  • Extra-thick molded composite front and rear shock towers
  • Heavy-duty drivetrain
  • Durable steel driveshafts
  • All-metal diff outdrives and gearbox internals
  • Spiral-cut crown/pinion gears
*For details on waterproof standards, please refer to the product instruction manuals.
  • Metal differential gears
  • Metal spur/idler gear
  • Aluminum sliding motor mount
  • Heavy-duty dual spring servo saver
  • Waterproof* receiver box
  • Electronic ESC power switch
  • Captured hinge pins
  • Aluminum hanger inserts
  • Center protection tower that interfaces with the roll cage for increased body durability
  • Body clip protection pads on top of body
  • Single piece wing mount
  • Heavy-duty front bumper
  • Metal 24mm hex inserts in wheels

  • Spektrum™ DX3™ 2.4GHz Radio with SRS6110AT AVC® Receiver
  • Spektrum™ Firma™ 160A Smart ESC
  • Spektrum™ Firma™ 1250Kv Brushless Motor
  • Spektrum™ S905 Metal-Geared Digital Servo
  • 4-Wheel shaft drive
  • 8S Power (two 4S batteries, not included)
  • Anti-roll bars (optional, not included)
  • Adjustable camber
  • Adjustable front toe
  • Rear adjustable camber link positions
  • Adjustable ride height
  • Adjustable droop
  • 20 million cSt oil in center differential
  • CVD driveshafts
  • All-terrain dBoots® BACKFLIP tires
  • Massive 20mm bore oil-filled adjustable shocks
  • Wheelie bar with rubber tires for maximum stunting
  • High downforce wing fitted with special wear screws to protect the wing when upside down

General Features

  • ARRMA®-tough design
  • ARRMA® modular platform with many “custom-build” options
  • Adjustable battery boxes with hook and loop straps
  • Chassis brace options including tower-to-tower
  • Reverse bell crank steering system
  • Heavy-duty double spring servo saver
  • Hex hardware throughout
  • Versatile chassis accepts motors up to 56110 size and 1/6 or 1/5 size servos 


Chassis: 0.16 in (4mm) thick 6161-T6 aluminum with reinforcements,
wheelie bar and quick removal electronics module
Drive: Four wheel shaft
Differentials: Front, center and rear gear type
Motor: Non-sensored brushless Spektrum 1250Kv 4985 4-pole with
cooling fan, mid-motor configuration
Electronic Speed Control: Spektrum Firma Smart 160A 8S with IC5
battery connectors and cooling fan
Radio: 2-channel 2.4GHz Spektrum DX3, can be equipped with Spektrum
dashboard (not included, separate purchase required)
Steering Servo: Spektrum SPMS905 high-speed & high-torque, with 15T
spline, metal gears, waterproof and dustproof
Shocks:Adjustable coil-over aluminum body, silicone fluid filled
Tires: dBoots BACKFLIP with medium inserts
Wheels: MT (4.8 24mm hex) black in color
Body: Trimmed decaled and painted
Spur Gear: 47T metal
Pinion Gear 19T metal, extra speed pinion gear included
Ball Bearings: Full set included 


Batteries: Two 100C 5000mAh 4S Lipo (hard or soft-case)
Battery Charger and Charging Bag: To match selected batteries
AA Batteries: Four for transmitter
Track and maintenance equipment


Length: 28.11 in (714mm)
Front Width: 23.46 in (596mm)
Rear Width: 23.43 in (595mm)
Height: 12.01 in (305mm)
Ride Height: 2.56 in (65mm)
Weight Without Battery: 24lbs 4oz (11kg)
Internal Gear Ratio: 9.06
Gear Pitch: 1Mod
Torque Split: 50 50
Standard Final Gear Ratio: 22.41
Final Gear Ratio Range: 14.68 - 30.43
Battery Dimensions: 6.69 x 2.16 x 2.09 in (170 x 55 x 53mm)
Max Servo Torque 6V: 38kg-cm 528oz-in
Max Servo Speed: 0.2 sec
Tire Diameter: 7.95 in (33.3mm)
Wheel Bead Diameter: 4.8 in (122mm)
Wheel Hex Size: 24mm
Front and Rear Shock Spring Rate: 2.21Nmm
Shock Oil Viscosity: 500 cSt
Diff Oil Viscosity: 100k20M100k cSt
Max Speed Possible: 55+ mph (88+ kmh)
Length: 24.65 in (626mm)
Width: 10.91 in (277mm)
Height: 6.34 in (161mm)


More Information
Part # ARA5810
Brand Arrma
Power Plant Electric
Terrain Type Off-Road
Vehicle Type Truggy
Drive Train 4WD
Scale 1/5

Related products