Arrma Outcast 8S

Arrma Outcast 8S

Brand: Arrma

Part Number: ARA5810B

£1,069.00 Web Price RRP £1,199.99

Out of stock : Expected December 31st

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LiPo batteries are the latest craze to hit the RC scene and provide approximately 20% more runtime and power than comparable NiCd/NiMh batteries.

1 x HPI Plazma 1.5V Alkaline AA Battery (4Pcs) #HPI-101939
1 x Super Duty LiPo Safe Charge Bag - Large - 19 X 22cm #WM-LSACK
1 x EC5 Super Duty Charge Lead With 4mm Plugs #O-LGL-CLEC5
2 x Voltz 5000mAh Hard Case 14.8v 4S 50C LiPo - EC5 #VZ0350EC5
1 x eTronix Powerpal 3.0 AC/DC Performance Charger/Discharger - 80W 10A #ET0202

saving you £151.57 over RRP!

Spektrum SMART LiPo batteries have clever technology built in making charging and looking after your packs easier than ever before!

1 x HPI Plazma 1.5V Alkaline AA Battery (4Pcs) #HPI-101939
1 x Super Duty LiPo Safe Charge Bag - Large - 19 X 22cm #WM-LSACK
1 x Spektrum Smart S2100 AC Charger - 2 x 100W #SPMXC1010I
2 x IC5 Device to IC3 Battery Adapter - 100mm 10 AWG #SPMXCA507
2 x 5000mAh 4S 14.8V 100C Smart LiPo Hardcase IC5 #SPMX50004S100H5

saving you £178.27 over RRP!

Show Spares and Option Parts

Arrma Outcast 8S Features

      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
    • 2-year limited warranty (see website for details)


  • 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
    • 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
    • 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


    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

Arrma Outcast 8S Overview

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!

Arrma Outcast 8S Requires to Complete:

  • (2) 4S LiPo Batteries with IC5/EC5 Connector
  • Compatible Charger
  • LiPo Charging Bag
  • (4) AA Batteries

What's in the Arrma Outcast 8S Box?

  • (1) OUTCAST™ 1/5 8S BLX 4WD Stunt Truck RTR
  • (1) Spektrum™ Firma™ 160A Smart ESC
  • (1) Spektrum™ Firma™ 1250Kv Brushless Motor
  • (1) Spektrum™ S905 Metal-Geared Digital Servo [40kg-cm; 556 oz-in @ 7.4V]


For when only 90 degree wheelies will do



Responsive stunt performance



For easy meshing and quick removal



Stylish looks and functional impact protection



The stiff roll-cage offers protection against high speed roof-time



Interfaces with roll-cage for enhanced body durability











Center diff filled with 20 million cSt oil



Safe and Secure SAFE-D5 design secures pinion to the motor in three ways:

  • 1. Set Screw
  • 2. D-Shaped hole
  • 3. E-clip



ARRMA shock size comparison: 6S shock (left), 8S shock (right)



Accommodates a wide range of battery sizes




  • Length: 140mm-170mm
  • Maximum Battery Dimensions: 6.69 x 2.16 x 2.08 in. (170 x 55 x 53mm)



ARRMA diff size comparison: 6S diff (left), 8S diff (right)



8S ARRMA tough




  • Full-size 1/5th scale servo
  • Strong, metal gears used throughout
  • Waterproof and dustproof case
  • 15 tooth output spline
  • Torque: 38kg-cm @6V
  • Speed: 0.20sec/60degree @6V
  • Dimensions: 2.36 x 1.14 x 2.17" (60 x 55 x 29mm)




  • Waterproof and dustproof design
  • 160A, 8S LiPo ready (3S*, 4S*, 6S* and 8S LiPo compatible)
  • Spektrum® SMART Technology
  • 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, brake, BEC, LVC sensitivity, reverse speed and motor timing settings




  • 1250Kv 4685 size 8S brushless motor
  • Beautifully etched aluminum can
  • 4-pole construction for smooth and consistent power
  • 6.5mm gold bullet connectors for reliable and efficient connection
  • Black anodized aluminum motor can for increased heat dissipation
  • Super strong 5mm shaft
  • Groove at the end of the motor shaft allows the installation of a pinion retaining E-Clip




  • Ergonomic steering wheel for precise control
  • On-the-fly adjustable AVC® gain for personalized handling
  • Lightweight and ergonomic design for long bashing
  • 2 channel radio system
  • 2.4GHz technology built around DSMR technology
  • Full-range telemetry capabilities




  • Spektrum Bluetooth module*
  • DX3 Smart Phone Mount*
  • Smart Phone with the free Spektrum Dashboard App*

Download the free Spektrum Dashboard app for your smart phone at your preferred app store

*Optional items that need to be purchased separately



Arrma Outcast 8S Specfications:

  • Ball Bearings: Full set
  • Battery: Sold Separately
  • Battery Tray Dimensions: 6.69 x 2.16 x 2.09 in (170 x 55 x 53mm)
  • Battery Input Lead: IC5
  • Body: Painted,decaled and trimmed
  • Brakes: Integral with ESC
  • Bushing Material: Metal
  • Charger: Sold Separately
  • Chassis: 0.6 in (4mm) 6061-T6 Aluminum Plate
  • Completion Level: Ready-To-Run
  • Differential: Gear type
  • Drivetrain: 4WD
  • Drive Type: Forward/Brake/Reverse
  • Final Drive Ratio: 22.41:1
  • Front Shock Spring Rate: 2.21N/mm
  • Front Track: 23.46 in (596mm)
  • Power Type: Electric
  • Gear Pitch: 1.0 Module
  • Gear Ratio: 22.41:1
  • Ground Clearance: 2.56 in (65mm)
  • Internal Gear Ratio: 9.07:1
  • Motor Size: 4985
  • Motor Type: Brushless - Sensorless
  • Pinion: 17T
  • Product Height: 12" (305 mm)
  • Product Length: 28.11" (714 mm)
  • Product Weight: 24lbs (10886g)
  • Product Width: 23.46" (596 mm)
  • Radio: Included
  • Rear Shock Spring Rate: 2.21N/mm
  • Rear Track: 23.46 in (596mm)
  • Receiver: Included
  • Recommended Fuel: Electric
  • Scale: 1/5
  • Servos: Included
  • Shock Type: Oil-filled, coil over adjustable
  • Speed Control: Included
  • Suspension: Independent
  • Technology: Smart
  • Tire Size: 7.95 in (202mm) diameter
  • Tire Tread: dBoots Backflip
  • Tire Type: Multi-surface
  • Water-Resistant: Yes
  • Wheelbase: 16.92 in (430mm)
  • Wheel Hex Size: 24mm
  • Wheel Type: MT 4.88in
  • Wheel Width: 3.54 in (90mm)
  • Brand: Arrma
  • Part No: ARA5810B
  • Scale: 1:5
  • Build Level: Assembled (RTR)
  • Power Source: Electric - Brushless
  • Vehicle Type: Monster Truck
  • Surface Type: Off Road
  • Fitment: Standard Part

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No reviews yet!
hi was wandering how long roughly can run before needs a charge n how long does take to charge. many thanks
Asked by Richard on 21st August 2020

That depends on your battery and charger setup, but on 5000mah batteries I'd expect to see around 25 mins runtime. 

A decent charger would charge those in around 45-60 mins

Answered by: Ben @ Wheelspin Models

Does that come with a remote?
Asked by Alex Newman on 16th January 2021

Yes it does

Answered by: Ben @ Wheelspin Models

Is there a booklet or information for the controls of the rc car
Asked by Kamryn O’brien on 23rd April 2021

Yes you get a manual in the box 

Answered by: Anthony @ Wheelspin Models

Is this car faster than the notorious
Asked by Kamryn O’brien on 16th May 2021

Than the notorious 6S? These are bigger and heavier, but do run higher voltage batteries. Arrma quote 55+ mph top speed on these, and 60+ mph on the smaller Notorious 6S - so not much in it

Answered by: Ben @ Wheelspin Models

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