ARRMA 1/5 KRATON 8S EXB AVC 4X4 RTR Brushless Speed Truck, Black

ARRMA 1/5 KRATON 8S EXB AVC 4X4 RTR Brushless Speed Truck Overview

The KRATON® 1/5 8S Speed Monster Truck showcases ARRMA® bashing performance at its biggest and best — and in this ready-to-run version, it's better than ever before. Loaded with EXtreme Bash parts for improved durability, plus a powerful 8S LiPo-capable Spektrum™ brushless system, the ARRMA® KRATON® 1/5 8S EXB Speed Monster Truck RTR is the ultimate experience for large-scale bashers looking for unmatched footprint and power.

Massive Spektrum™ 8S Smart Brushless System

The updated Spektrum™ 8S-capable brushless system is more powerful than ever. It features a massive 5687 FIRMA™ 1100Kv brushless motor with a huge 56mm diameter that delivers 10% more torque than the previous KRATON® 8S RTR motor. This power plant is paired with a Spektrum™ S6510 steel gear digital steering servo that pumps out an incredible 820 oz-in of torque at 8.4V — nearly 50% more torque than its predecessor. The premium package also includes a Spektrum wilderness-taming FIRMA™ 160A V2 Smart ESC and a Spektrum™ DX3 3-channel 2.4GHz DSMR radio system with Spektrum™ AVC® (Active Vehicle Control) technology built into the receiver to keep this ground-shaking power fully under control.

Teeth-Grit EXtreme Bash (EXB) Toughness

Numerous EXB-hardened parts and options give the ready-to-run ARRMA® KRATON® 1/5 8S EXtreme Bash Speed Monster Truck virtually unstoppable strength right out of the box. Key structural upgrades include a 5mm thick EXB 7075 T6 CNC aluminum laser-etched chassis plate, an EXB red-anodized CNC aluminum front brace mount, and a heavy-impact EXB front bumper with an impact-absorbing multi-stage design. Topping it off is a rugged truck body finished with an aggressive new matte EXB color scheme. No soft designs here — this monster truck is built to look as purposeful, raw, and mean as it runs!

Heavy-Duty Oil Shocks & All-Terrain dBoots Tires

Adjustable, oil-filled, massive 20mm bore aluminum shocks with 6mm thick shock shafts and ultra-thick composite towers effortlessly soak up massive jumps and terrain bumps. The KRATON® 8S EXB blasts over dirt, asphalt, sand, and grass in all weather conditions. Beefy dBoots® COPPERHEAD™ 2 big block tires pre-mounted on multi-spoke wheels with highly durable 24mm hubs add unrelenting all-terrain traction, while a center body support, aluminum center chassis braces, and composite side pods keep the entire platform structurally rigid.

Modular Maintenance & Bulletproof Drivetrain

All-metal differential outdrives and gearbox internals, alongside heavy-duty steel driveshafts throughout, provide a reliable, heavy-duty 4WD drivetrain that holds up to extreme high-speed rammings. Best of all, ARRMA® keeps your maintenance downtime to an absolute minimum with its proven, highly efficient, and easy-access modular design blocks. Considering its incredible scale performance, convenient maintenance, and game-changing value, this is the biggest and best ARRMA® ready-to-run basher to date!

ARRMA 1/5 KRATON 8S EXB Features

EXtreme Bash (EXB) Toughness & Chassis Upgrades

• The Ultimate Big-Scale Basher: ARRMA's largest ready-to-run (RTR) Speed Monster Truck, engineered tough for extreme impacts.
• EXB 7075-T6 Chassis Plate: Heavy-duty 5mm thick CNC aluminum chassis plate featuring precision laser-etched detailing.
• EXB Front Brace Mount: CNC machined aluminum front brace mount finished in aggressive EXB red-anodizing.
• Impact-Absorbing Front Bumper: Redesigned front bumper setup featuring an advanced multi-stage impact-absorbing structure.
• Reinforced Suspension Components: Equipped with bigger, tougher oil-filled shocks, high-strength linkages, ultra-thick turnbuckles, and rugged steering components.
• Maximum Structural Rigidity: Full-length center body support rod, aluminum center chassis braces, and heavy-duty composite chassis side pods.
• Exclusive EXB Cosmetics: Finished in an aggressive, stealthy matte/gloss contrast EXB color scheme with an integrated wheelie bar.

High-Torque Spektrum™ 8S Brushless Electronics

• Updated Spektrum™ 8S Power System: Extreme 8S LiPo capable brushless setup optimized for maximum high-speed punch and efficiency.
• High-Torque FIRMA™ 1100Kv Motor: Huge 56mm diameter brushless motor pumping out 10% more raw torque than previous iterations.
• Heavy-Duty FIRMA™ 160A V2 Smart ESC: Fully updated electronic speed control providing more immediate punch and a much better overall driving feel.
• High-Power Waterproof Steering Servo: Spektrum™ S6510 digital steering servo with premium steel internal gears, delivering 47% more torque (820 oz-in at 8.4V).
• Spektrum™ DX3 2.4GHz Transmitter: Premium 3-channel DSMR radio system for reliable, long-range interference-free control.
• Active Vehicle Control (AVC®): Spektrum™ SR6200A DSMR receiver features built-in AVC electronic stability correction to tame massive 8S power.

Bulletproof Drivetrain & Simplified Maintenance

• Heavy-Duty 4WD Drivetrain: Continuous shaft-driven full-time 4-wheel drive designed to withstand high-speed rock and dirt bashi-sessions.
• All-Metal Internals: Fully metal differential outdrives and completely metal gearbox internals for maximum gear lifespan.
• Durable Driveshafts & Hubs: Thick, high-grade steel driveshafts running out to heavy-duty wheel hubs equipped with 24mm hex dimensions.
• dBoots® Copperhead 2 Tires: Massive Big Block all-terrain tires delivering exceptional multi-surface traction and long wear life.
• Easy-Access Differential Modules: Highly efficient modular front and rear differential housing layouts for rapid field teardowns.
• 3-Bolt Sliding Motor Mount: Quick-release sliding aluminum motor mount using just 3 bolts for simple gear mesh adjustments.
• Waterproof Electronics Module: Easy-access sealed receiver and electronics box to shield crucial components from moisture and dirt.

Premium Extras & Warranty Pack

• 24mm Heavy-Duty Wheel Wrench: High-quality CNC machined aluminum wheel wrench included in the box for swift tire swaps.
• 2-Year Limited Warranty: Supported directly by Horizon Hobby and ARRMA factory support guarantees (see official documentation for full details).

Product Specifications

• Scale 1/5 (Large Bashing Category)
• Vehicle Type EXtreme Bash Monster Truck
• Completion Level Ready-To-Run
• Power Type Electric
• Product Length 30.35" (771 mm)
• Product Width 23.7" (602 mm)
• Product Height 11.1" (282 mm)
• Wheelbase 19.33" (491 mm)
• Ground Clearance 2.56" (65 mm)
• Chassis Structure 5mm Plate, CNC Machined 7075-T6 Aluminum
• Suspension Independent, Front & Rear
• Shock Type Oil-Filled, Aluminum Coil-Over Springs
• Drivetrain 4WD (Full-Time 4-Wheel Drive)
• Drive Type Forward / Brake / Reverse
• Brakes Integral with ESC
• Differential Layout Heavy-Duty 3 Gear Diffs (Metal Internals)
• Gear Pitch 1.0 MOD (Heavy-Duty)
• Gear Ratio 9.06
• Wheel Hex Size 24 mm
• Tire Tread dBoots® COPPERHEAD 2™ BIG BLOCK
• Ball Bearings Complete (Rubber-Shielded Throughout)
• Motor Type Brushless
• Motor Size 5687-1100Kv 4-Pole
• Power System 8S Smart Brushless
• Radio System Included (Spektrum DX3 3-Channel)
• Receiver Included (Spektrum SR6200A)
• Speed Control (ESC) Included (Spektrum Firma 160A V2 Smart)
• Servos Included (Spektrum S6510 Steel-Gear Digital)
• Smart Technology AVC® (Active Vehicle Control) and SMART Telemetry
• LiPo Compatibility 6S LiPo, 8S LiPo
• Connector Type IC5 / EC5 Compatible
• Water-Resistant Yes
• Top Speed 50+ MPH (80+ km/h) with optimal gearing
• Body Painted, Decalled, and Trimmed
• Sõiduaku (Battery) Sold Separately
• Charger Sold Separately

What's In The Box:

• (1x) ARRMA® 1/5 KRATON® 8S EXtreme Bash Speed Monster Truck 4X4 RTR
• (1x) Spektrum™ DX3 3-Channel 2.4GHz DSMR Radio Transmitter
• (1x) Spektrum™ SR6200A DSMR Receiver with AVC® (installed)
• (1x) Spektrum™ S6510 Steel Gear Waterproof Steering Servo (installed)
• (1x) Spektrum™ FIRMA™ 5687 1100Kv Brushless Motor (installed)
• (1x) Spektrum™ FIRMA™ 160A V2 Smart ESC (installed)
• (1x) CNC Machined Aluminum 24mm Wheel Wrench
• (1x) 1/5 KRATON® 8S EXtreme Bash Product Manual
• (4x) AA Alkaline Transmitter Batteries

Needed to Complete:

• (2x) 3S or 4S Hardcase LiPo Batteries with IC5® or EC5™ Connectors (do not use softcase packs)
• (1x) Compatible LiPo Battery Balance Charger