Product description

The KRATON 4S BLX RTR offers ARRMA speed and power in the perfect size for any monster truck enthusiast. It features a center differential for ultimate grip, an updated Spektrum brushless system for increased power, added mud and dirt protection, and two fresh color options.

New for this model

Metal center differential for enhanced grip
Updated chassis with a central differential module, hinge pin reinforcement, and dirt drainage
Protective covers for drive shafts, higher side protection, and dirt guards for suspension arms
Stronger Spektrum S662 servo with aluminum housing
Cooler-running Spektrum Firma 120A ESC
Improved battery mounting

Overview

With extra beefy tires, an imposing stance, and a lengthy wheelbase for stability, the 1/10 scale ARRMA KRATON 4S BLX proudly bridges the agile 3S and mighty 6S machines. The 4S BLX platform delivers ARRMA performance, toughness, and speed without overspending. This KRATON comes fully assembled, ready to unleash unmatched power!

The reinforced chassis now includes a center differential with an aluminum housing, ensuring top-notch traction on any surface. Fully shielded with added protection for suspension arms, drive shafts, and higher side guards, the KRATON 4S is geared for rapid rides over mud, grass, and hard surfaces with equal ease.

ARRMA has boosted its 4S-capable Spektrum brushless power system for aggressive all-terrain driving. A cooler-running Spektrum Firma 120A waterproof ESC with IC5 connectors ramps up power and improves handling. Steering gets an upgrade with a more robust Spektrum S662 servo, enhancing high-speed maneuverability.

These updates combine with an extensive range of proven ARRMA 4S BLX features, from tall shock towers, lengthy oil-filled shocks, and wide suspension arms for smooth travel to steel differential gears and EXtreme Bash CVD drive shafts for unstoppable power transmission. The KRATON 4S BLX also incorporates the hallmark ARRMA modular design for quick and easy routine maintenance.

Constructed from high-quality rubber, the vented dBoots COPPERHEAD 2 LP tires boast an aggressive, rugged tread pattern that grips nearly any terrain. The truck body features a sturdy rear wing and comes in two new, fresh color schemes. Front and rear bumpers shield against impacts, while a wheelie bar with rubber tires adds stunt capabilities.

Fully ready to run, the ARRMA KRATON 4S BLX Speed Monster Truck includes a 3-channel Spektrum SLT3 2.4GHz radio and dual protocol SR315 receiver. Choose your own batteries and charger, and you're set to bash with the best!

Features

Spektrum SLT3 2.4GHz transmitter and dual protocol SR315 receiver
Spektrum Firma 3668 2400Kv brushless motor with ARRMA heatsink and cooling fan
EXB all-metal differentials
EXB CVD drive shafts
Wide axles for aggressive driving style
Long chassis and matching wheelbase for stable handling
Rubber-sealed bearings
Central support brace for maximum durability
Double wishbone suspension
Oil-filled aluminum shocks with silicone O-rings
Tall shock towers for extended travel
Sturdy black multi-spoke wheels
CNC-machined, red anodized 17mm wheel hubs
Multi-terrain dBoots COPPERHEAD 2 LP tires
Adjustable suspension arms
Adjustable ride height
Adjustable body mounts
Protective skid plates front and rear
Wheelie bar with rubber tires
2-year ARRMA warranty

Metal Center Differential

All-metal EXB gear differentials provide the KRATON 4S BLX Speed Monster with extreme durability. An aluminum-cased center differential has also been added, ensuring ultimate traction on all surfaces.

Modular Chassis Design

Separate, easily removable chassis modules for the power system, electronics, and differential components make routine maintenance quick and simple. The KRATON 4S BLX chassis has been updated to accommodate a center differential module, and now includes hinge pin reinforcement and dirt drainage.

Oil-Filled Shocks

Extra-long, oil-filled shocks with silicone O-rings and aluminum housing are mounted on tall shock towers. Along with the wide suspension arms, these provide the KRATON 4S BLX with the smooth travel necessary to handle all bumps.

Enhanced Dirt Protection

With mud guards for the suspension arms, drive shaft protectors, and higher side guards, the KRATON 4S BLX is better shielded than ever for rapid rides on all terrains.

Spektrum S662 Steering Servo

The installed waterproof digital Spektrum S662 steering servo easily handles the demands of high-speed driving on all roads with full metal gears and high torque (236 oz-in @ 7.4V). It also features an industry-standard 25T spline servo horn.

Spektrum Brushless Power System

The brushless power system includes an efficient Spektrum Firma 2400Kv brushless motor matched to an upgraded, cooler-running Spektrum Firma 120A Smart V2 waterproof ESC with IC5 connectors (also compatible with EC5 connectors). The KRATON 4S BLX can achieve speeds of 90 km/h with a 4S LiPo battery and optional gear ratio, sold separately.

Spektrum SLT3 2.4GHz 3-Channel Transmitter and Receiver

The included Spektrum SLT3 transmitter is ergonomically designed for comfortable driving and has a soft foam wheel for precise fingertip control. Using the throttle limiting function, new RC drivers can limit the top speed to 50% or 75% of the monster truck's full potential until they're ready to unleash all it's monstrous power.
Compatible with SLT and DSMR protocols, the included Spektrum SR315 3-channel receiver offers outstanding range and a fast response rate. It's also compatible with smart telemetry (in DSMR mode and using the Spektrum Dashboard app).