- -10.88 €
Arrma Kraton 4S V2 BLX 1:10 4WD RTR Red
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Package contents
The package contains a fully assembled Arrma Kraton 4S BLX V2 remote control car RC model with installed components: Spektrum 3668 2400Kv AC motor, Spektrum FIRMA Smart 120A V2 controller, Spektrum S662 MG servo, Spektrum SR315 DSMR/SLT receiver. Transmitter Spektrum SLT3 2.4GHz. Accessories: short-circuit jumper IC5, Allen key (2.0, 2.5 mm), multi-function key, washers for springs. CZ manual and multilingual manual EN, DE, FR.
Characteristics
The ARRMA ® 4X4 4S RC model represents the ideal middle ground between the smaller 3S and larger 6S models. Thanks to the excellent AC drive , it travels at speeds of up to 80 km/h. The 4x4 drive guarantees unrivaled driving characteristics. The redesigned powertrain provides increased durability and better power distribution for endless fun. Top-of-the-line Spektrum electronics with the possibility of setting and other functions are used.
The model features a reinforced chassis that is compatible with the newly used center differential . Whatever the conditions, the center differential helps you get maximum traction. Increased protection against flying stones is provided by several installed upgrades – shoulder covers, half-axle and higher chassis sidewalls.
The power supply system has also been improved on the model in the form of a new waterproof* regulator Spektrum Firma 120A Smart V2 IC5. The V2 regulator is more efficient, heats up less and has more punch for a better driving experience. Steering has been enhanced with a Spektrum S662 digital servo with metal gears and a metal center case that dissipates heat better. Higher servo torque sharpens handling at high speeds.
The aforementioned improvements are combined with proven ARRMA 4S BLX features such as – long travel aluminum oil shocks, wide robust arms, to metal differentials and EXtreme Bash CVD steel front and rear drive shafts for an unstoppable power supply. The model's chassis also features ARRMA's popular easy-access modular construction to make routine maintenance quick and easy.
dBoots COPPERHEAD 2 LP tires are made of high quality rubber with an aggressive tread pattern that grips well on a wide variety of surfaces. Everything is complemented by a detailed bodywork with a rear pressure wing and rear Wheelie wheels.
Modular chassis
The rigid composite chassis has been strengthened and modified for the newly used center differential. The modular construction of easily removable blocks for easy maintenance has been retained. Raised sides limit the penetration of dirt inside the model. The front and rear bumpers effectively absorb impacts.
Center differential
Front and rear differentials with all-metal EXB gears, newly added center differential with aluminum body. This gives the model incredible durability and perfect distribution of power for individual wheels, which achieves excellent handling and maximum traction.
Oil dampers
The long stroke, aluminum body shocks are oil filled and are installed on tall shock towers. This ensures efficient absorption even of hard impacts.
Protective covers
Extra protection against dirt and flying stones is provided by raised covers installed on individual arms. The suspension and axles are thus better protected than ever before.
Detailed bodywork
The elegant pick-up body contains a detailed print and is complemented by a rear pressure wing.
dBoots COPPERHEAD 2 LP tires
High-quality dBoots ® COPPERHEAD 2 LP rubber tires are mounted on MT 3.8" wheels with aluminum anodized nuts and 17 mm lugs.
Digital servo SPEKTRUM® S662
- Servo SPEKTRUM® S662 with metal gears
- Waterproof*
- Torque 17 kg-cm at 7.4 V.
AC regulator SPEKTRUM™ FIRMA™ 120A V2 SMART 3S-4S
The control of the model is provided by a modern SPEKTRUM™ FIRMA™ 120A V2 SMART controller with a 32-bit ARM Cortex M4 microcontroller, which is able to capture complete telemetry and transmit it to the receiver using an integrated wire in the new IC5 connector. Data is transmitted via the SRXL2 protocol. The controller reads information about the type, temperature and voltage of the battery cells directly from the Smart battery. Current, temperature, total Smart battery voltage, Smart battery cell voltage, battery temperature, remaining capacity and engine speed are available in real time.
The electronics are completely encased in a special potting material that prevents moisture* or dirt from entering the electronics. The regulator is switched on and adjusted with the buttons that are under the rubber cover.
The upgraded firmware ensures more vigorous performance and a certain feeling of driving.
- The controller contains a fast and powerful 32-bit ARM M4 processor
- The regulator is waterproof*
- Overcurrent protection, thermal protection, failsafe
- Automatic LiPol disconnection at low voltage
- Robust plastic housing, aluminum heatsink with fan for high efficiency
- Adjustable high performance BEC
- Heavy duty IC5™ connectors, compatible with EC5™ connectors
AC motor
- Motor Spektrum Firma 3668-2400kv
- Power supply 2-4S LiPol
- Aluminum shell with black anodizing and engraved Spektrum logo
- 4-pole rotor construction
- The shaft with a diameter of 5 mm made of alloy steel is stored in ball bearings
- The motor is factory-fitted with 4 mm gold-plated connectors for a reliable connection
- The groove at the end of the motor shaft allows for secure mounting of the pinion
Spektrum SR315 DSMR Sport
The new generation SR315 DSMR Sport receiver in micro design weighs only 6g. Choice of SmartSafe™ or "Gas" Failsafe, push button pairing. DSMR technology ensures full range and fast response of the receiver.
- Box design with rounded corners and light weight
- Thanks to the pairing button, you don't need a pairing connector
- SmartSafe™ Failsafe and "Gas Mode" available when paired
- Secure DSMR modulation protocol and high frame rate of 5.5ms
- Compatible with SMART telemetry, (compatible DMSR transmitter with SPEKTRUM dashboard application)
Transmitter Spektrum SLT3
The Spektrum SLT3 3-channel steering wheel transmitter operating in the 2.4 GHz band is compatible with the SLT protocol. The light weight of the Spektrum SLT3 transmitter allows you to hold it without fatigue. The steering wheel is covered with a foam rim for a firm grip. The layout of the controls is practical and intuitive - all controls are located so that they are quickly accessible when needed. A secure loop is provided for attachment to the strap.
- Spektrum SLT 3-channel steering wheel RC kit for reliable control
- Proven construction for a comfortable grip without fatigue
- Options for limiting the maximum deviations of the control channel
- Throttle and steering trim, throttle and steering reverse
- Engine power limiter 50%, 75% and 100%
- You can use the third channel for additional devices, e.g. for sound modules.
Spektrum SMART technology
Spektrum Smart technology offers more information about the model, transmission of telemetry, easier operation and battery care. All SMART components, including batteries, are capable of communicating with each other and transmitting telemetry. To display complete telemetry, you must have a compatible Spektrum transmitter with a display. The display of telemetry depends on the type of radio for a specific model.
You can find more information about Smart technology in our blog . Overview of compatible transmitters here.
New features of Arrma Kraton 4S
- Center differential for better traction
- Modified chassis with center differential module and reinforced suspension pivot
- Suspension arm covers and higher sidewalls against dirt
- Servo Spektrum S662 with metal center housing
- More efficient operation of the Spektrum Firma 120A V2 Smart regulator with improved throttle sensitivity
- Modified battery mounting system
Proven features of the Arrma 4S chassis
- Fully assembled and finished RC model
- Spektrum SLT3 2.4GHz transmitter and dual protocol SR315 receiver
- Spektrum Firma 3668 2400Kv AC motor with ARRMA cooler and fan
- All-metal transmissions of EXB differentials
- EXB CVD front and rear drive shafts
- Wide gauge and wheelbase for stability
- Bearings with rubber cover
- Central reinforcement for maximum durability
- Double wishbone suspension
- Oil-filled aluminum shock absorbers with silicone O-rings
- Tall damper towers for long damper travel
- Servo-saver for steering protection
- Black spoked wheels
- CNC machined, red anodized 17mm wheel carriers
- COPPERHEAD 2 LP tires for high grip
- Adjustable steering and suspension linkages
- Front bumper and protective lower covers
- Wheelie back rail with rubber wheels
* Refer to the user manual for information on the water resistance specification. You can find tips and tricks for wet driving in the blog.
We recommend to buy
To operate the model, you need 4x AA batteries for the transmitter, a drive battery and an adequate charger for the drive battery.
Recommended batteries
It is most suitable to use one LiPo drive battery with 3 or 4 cells (11.1 V, 14.8 V). In this case, leave the other end of the Y-cable blinded by jumper IC5.
- For regular riding, Spektrum 11.1 V 5000 mAh LiPo battery with Smart technology, or Spektrum G2 LiPo 11.1 V 5000 mAh with Smart G2 technology.
- For the maximum possible speed LiPo battery Spektrum 14.8 V 5000 mAh with Smart technology, or Spektrum G2 14.8 V 5000 mAh with Smart G2 technology.
- For maximum speed, performance and driving time, the Spektrum G2 14.8 V 6800 mAh LiPo battery with Smart G2 technology.
Spektrum batteries with Smart technology currently represent the most modern and safest way to maintain and charge batteries. The benefits of Spektrum Smart technology can be found here.
Smart G2 batteries are even simpler and safer, thanks to the absence of a balance connector. In addition, G2 batteries have up to 3x faster automatic discharge into storage mode. Smart G2 batteries can only be charged on Spektrum Smart and Smart G2 chargers.
Recommended chargers for conventional and Smart batteries
Spektrum Smart chargers can charge both Smart and Smart G2 batteries as well as conventional batteries. Previously sold Smart chargers also support Smart G2 after updating.
- Network charger Spektrum S155 with one output 1x 55W.
- Network charger Spektrum S1100 with one output 1x 100W.
- Mains charger Spektrum S2100 with two outputs 2x 100 W.
- Spektrum S1400 mains charger with one output 1x 400 W.
Universal transmitter with display
For the operation of the model, we recommend the Spektrum DX5C or DX5 Rugged universal transmitter as tuning, which has the following advantages compared to the included set transmitter:
- Display for displaying data and convenient settings
- Display of complete SMART telemetry provided by the model (according to model type)
- Precise control mechanics, excellent ergonomics
- Option to set advanced functions, including exponentials
- Pairing multiple models with one transmitter, memory of individual settings
Accessories for normal operation
For the normal operation of RC models, you need tire glue, screw glue, a tool kit and silicone shock oil. We recommend an affordable tool kit for RC cars from our range.
Tire glue is used to glue the tires to the disc rim. It is always necessary that the tire is firmly stuck to the wheel rim all the way around! If the tire is not glued all the way around, it may tear. Tire glue has a special composition that is able to glue materials such as rubber or nylon, and at the same time, after hardening, the glue is flexible. We recommend Robitronic Tire Glue from our offer - see recommended accessories.
Sometimes it is necessary to add silicone oil to the shock absorbers of the model and change the oil in the differentials. During normal operation, there are only slight leaks of silicone oil on the piston rods of the shock absorber. In the event that the surface of the damper pistons or the condition of the seals is in poor condition, the oil leakage may be large. Repair kits or individual parts are supplied for these cases. From our range of silicone oils, we recommend TLR (Team Losi Racing) silicone oils, see recommended accessories.
For routine maintenance, screw glue is needed. Screws screwed into the metal material (e.g. screws in the motor, set screw in the pinion) must be secured against loosening with this glue.
Protective covers for accumulators
Protective packaging is intended to limit the risk associated with the transport and charging of accumulators. LiPo accumulators can, while maintaining small dimensions and low weight, provide high discharge currents and have a large capacity for a long driving time. Conversely, the LiPo battery is especially susceptible to mechanical damage.