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Arrma Limitless 8S RTR

Brand: Arrma

Part No: ARA7816

£749.00 RRP £829.99

In Stock: Usually ships same day

Collect Instore

Combine some top spec 3S batteries for 6S power and ultimate speed!

1 x HPI Plazma 1.5V Alkaline AA Battery (4Pcs)
HPI-101939
1 x Voltz LiPo Charge Sack Bag - Medium 22cm x 18cm
VZ1001
1 x EC5 Super Duty Charge Lead With 4mm Plugs
O-LGL-CLEC5
1 x eTronix Powerpal 3.0 AC/DC Performance Charger/Discharger - 80W 10A
ET0202
2 x Voltz 5000Mah 11.1V 50C Lipo Battery - EC5
VZ0550003SEC5

Saves £99.42 over RRP

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 Voltz LiPo Charge Sack Bag - Medium 22cm x 18cm
VZ1001
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

Saves £102.23 over RRP

Add the latest SMART technology batteries for the easiest charge experience and top performance.

1 x HPI Plazma 1.5V Alkaline AA Battery (4Pcs)
HPI-101939
1 x Voltz LiPo Charge Sack Bag - Medium 22cm x 18cm
VZ1001
2 x 5000mAh 3S 11.1V 50C Smart LiPo Hardcase IC5
SPMX50003S50H5
1 x Spektrum S2100 G2 2x100W AC Smart Charger
SPMXC2000I

Saves £123.97 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 Voltz LiPo Charge Sack Bag - Medium 22cm x 18cm
VZ1001
2 x Spektrum SMART G2 Hard Case LiPo Battery - 14.8V 5000mAh 4S 100C - IC5
SPMX54S100H5
1 x Spektrum S2100 G2 2x100W AC Smart Charger
SPMXC2000I

Saves £131.47 over RRP

The Arrma Limitless 8S RTR (ARA7816) is a 1/7 scale, ready-to-run speed machine engineered for high-performance speed runs on asphalt and other prepared surfaces. Factory-assembled with Spektrum Smart electronics and heavy-duty EXB drivetrain components, it offers multiple speed-tuning paths — from spirited all-road running to extreme high-speed passes.

Out of the box, the EXB centre differential and included gearing are designed for 70+ mph performance. Fit the supplied high-speed pinion to target 100+ mph, or combine the provided centre spool and trim aero package for manufacturer-rated 120+ mph speed runs. The Spektrum DX3 2.4GHz transmitter with throttle limiting (50%/75%/100%) pairs to the SR6200A AVC receiver to help keep the car tracking straight as speeds rise.

Power comes from a Spektrum Firma 160A Smart V2 ESC and a Firma 4685 1450Kv brushless motor with an ARRMA heatsink and dual cooling fans. A waterproof Spektrum S665 metal gear digital steering servo delivers strong, consistent control. The refined 3mm anodised aluminium chassis, centre brace, EXB differentials with all‑metal outdrives, and bearing-supported rear drive shaft provide durability, while big bore oil-filled shocks, black‑anodised towers, and dBoots Hoons all‑road tyres support confident high-speed handling. Aerodynamic elements include a full-width front splitter, large rear diffuser and wing trim lines to balance downforce and drag.

Key Features

  • Ready-to-run — just add suitable batteries and charger
  • Factory-finished low-drag body with adjustable aero trim
  • Suggested compatibility: 6S or 8S hardcase LiPo batteries
  • Optional centre spool and high-speed pinion included for speed tuning
  • Tunable aero package to optimise downforce and top speed
  • Spektrum DX3 Smart 2.4GHz transmitter with throttle limiting
  • Spektrum SR6200A DSMR 6-channel receiver with AVC technology
  • Spektrum Firma 4685 1450Kv brushless motor with heatsink and dual fans
  • Spektrum Firma 160A Smart V2 6S/8S waterproof ESC
  • Spektrum S665 waterproof metal gear digital steering servo
  • Refined 3mm anodised aluminium chassis with centre brace
  • Heavy-duty drivetrain with EXB differentials and all-metal outdrives
  • Bearing-supported rear drive shaft
  • Big bore oil-filled shocks; black-anodised aluminium shock towers
  • Speed wheels with dBoots Hoons all-road tyres
  • Full-width front splitter and large rear diffuser
  • Wing trim lines to reduce downforce and drag when required
  • Adjustable front and rear body mounts
  • Large battery trays to accommodate larger packs
  • Safe-D output shaft
  • 2-year limited warranty

What’s Included

  • Spektrum Firma 160A Smart V2 Waterproof ESC (6S/8S)
  • Spektrum SR6200A DSMR 6-Channel AVC Surface Receiver
  • Spektrum Firma 4685 1450Kv Brushless Motor
  • ARRMA heatsink and dual cooling fans
  • Spektrum S665 Waterproof Metal Gear Digital Steering Servo
  • Spektrum DX3 Smart 3-Channel 2.4GHz Transmitter
  • AA batteries
  • Instruction manual
  • Misc. tools

Required To Complete

  • 4S or 3S hardcase LiPo battery packs x2
  • Compatible charger
  • Charging bag

Ready to obliterate every speed limit you’ve ever respected? The 1/7 scale ARRMA® LIMITLESST 120 doesn’t just break records, it shatters them, sweeps up the pieces, and asks what’s next. This isn’t your casual weekend basher. This king of the speed demons targets drivers who think 100 mph is just the warm-up lap.

Straight out of the box, this ready-to-run production spec RC car comes locked and loaded with everything you need to dominate asphalt, embarrass supercars, and leave tire marks on your memory. Just drop in your choice of 6S or 8S hardcase LiPo and add a charger, and you’re holding the keys to the fastest production RC ever built. Now you’re ready to unleash peak ARRMA speed potential.

This latest LIMITLESS evolution doesn’t just go fast. It gives you three different ways to send it. Factory-assembled with an EXB center differential and gearing that’ll blast you past 70 mph for epic all-road chaos. Want more? Swap in the included high-speed pinion and watch this beast crank past 100 mph like it’s cruising to the grocery store. Ready to make physics cry? Install that high-speed pinion with the supplied center spool and the trim aero package to prepare for face-melting 120+ mph speed runs that’ll make you feel bad for all the rest.

The electronics package doesn’t mess around either. We’re talking factory-installed SpektrumT power that’s ready to handle whatever voltage you throw at it. The IC5 connector-equipped FirmaT 160A Smart V2 ESC teams up with a Firma 1450Kv brushless motor complete with heatsink and dual cooling fans. The waterproof Spektrum S665 metal gear steering servo cranks out 277.75 oz-in of torque at 7.4V, and like the motor and ESC, the LIMITLESS 120 is completely waterproof because fast shouldn’t mean fragile.

The Spektrum DX3 2.4GHz transmitter keeps you in command while your brain tries to process what 120 mph actually feels like. Smart drivers use the throttle limiting feature to dial things back to 50% or 75% until you’re ready to unleash the full fury. The 6-channel Spektrum SR6200A DSMR receiver comes loaded with AVC® technology that keeps this rocket tracking straight instead of turning your speed run into an unplanned drift session.

Legendary ARRMA toughness means the LIMITLESS 120 can handle punishment that would turn other RCs into expensive confetti. The 3mm anodized aluminum chassis gets reinforced with a center brace because structural integrity matters when you’re breaking the sound barrier. We’ve optimized the 4X4 transmission for 8S power with EXB differentials, all-metal diff outdrives, and gearbox internals that won’t flinch when the throttle hits the floor. Big bore oil-filled shocks mounted on black-anodized towers keep those dBoots Hoons all-road tires glued to whatever surface you’re terrorizing, whether it’s asphalt, short grass, or loose gravel.

The factory-finished low-drag body comes in aggressive color schemes that look fast even when it’s sitting still. Wing trim lines let you dial back the downforce when you want maximum velocity, while the full-width front splitter and large rear diffuser team up to tell wind resistance exactly where it can go.

Your ultimate speed machine experience starts now. Drop in your 6S or 8S LiPo, point it down the longest stretch of pavement you can find, and prepare to redefine what fast actually means. The ARRMA LIMITLESS 120 RTR doesn’t just go fast - it goes ARRMA fast.

1/7 ARRMA Limitless 120 8S RC Speed Machine Features

  • Ready-to-run - just add your choice of battery and charger
  • Factory-finished low-drag body in a choice of colors
  • Ready for 6S or 8S hardcase LiPo batteries
  • Optional spool and pinion gears included for speed tuning
  • Tunable Aero package included to balance downforce and speed
  • Spektrum DX3 Smart 3-channel 2.4GHz transmitter
  • Spektrum SR6200A DSMR 6-channel AVC receiver
  • Spektrum Firma 1450Kv brushless motor with ARRMA heatsink and dual cooling fans
  • Spektrum Firma 160A Smart V2 6S/8S waterproof ESC
  • Spektrum S665 waterproof metal gear digital steering servo
  • Refined 3mm anodized aluminum chassis
  • Center brace for maximum durability
  • Heavy-duty drivetrain
  • EXB differentials with all-metal diff outdrives and gearbox internals
  • Bearing-supported rear drive shaft
  • Big bore oil-filled shocks
  • Black-anodized aluminum front and rear shock towers
  • Speed wheels and all-road dBoots Hoons tires
  • Full-width front splitter
  • Large rear diffuser
  • Wing trim lines provided for reducing downforce and drag
  • Adjustable front and rear body mounts
  • Large battery trays to accommodate larger batteries
  • Safe-D output shaft
  • 2-Year limited warranty

In The Box

  • Spektrum Firma 160A Smart V2 Waterproof ESC 6S/8S
  • Spektrum SR6200A DSMR 6-Channel AVC Surface Receiver
  • Spektrum Firma 4685 1450Kv Brushless Motor
  • ARRMA Heatsink and Dual Cooling Fans
  • Spektrum S665 Waterproof Metal Gear Digital Steering Servo
  • Spektrum DX3 Smart 3-Channel 2.4GHz Transmitter
  • AA Batteries
  • Instruction Manual
  • Misc. Tools
  • For details on waterproof standards, please refer to the product instruction manuals.

Arrma Limitless 8S RTR Requires to Complete:

  • 4S or 3S Hardcase LiPo Battery Packs x 2
  • Compatible Charger
  • Charging Bag


Key Info:
  • Brand: Arrma
  • Part No: ARA7816
  • Scale: 1:7
  • Build Level: Assembled (RTR)
  • Power Source: Electric - Brushless
  • Vehicle Type:
    • Formula 1
    • Touring / Rally Car
  • Surface Type: On Road
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