ARRMA 1/10 SENTON 4x4 MEGA 550 Brushed SC RTR, Blue

By:arrma rc vehicles
Quantity: Only 4 left in stock.




Powered by the MEGA 550 brushed motor system, the ARRMA® SENTON&trade 4X4 MEGA RTR Short Course Truck is DESIGNED FAST, DESIGNED TOUGH &mdash built for exciting bashing speeds and extreme, all-terrain durability!

Its full-time 4WD transmission with front and rear differentials uses strong front, rear, and centerline telescoping driveshafts that can’t be lost during heavy impacts, unlike dogbones. A simple, dependable, responsive steering assembly complements the ultra-reliable drive system and features a servo horn with built-in servo saver.

The self-bleeding, oil-filled shocks use a tried and tested, coil-over design for simple maintenance and amazing handling. Their innovative rod end has a molded-in spring perch for extra toughness. High chassis guards limit the amount of dirt and debris that can get into the chassis tub. Side impact nerf bars further protect the chassis and body shell, and shock-absorbing loops keep the front and rear bumpers secured to the chassis, offering defense against heavy impacts.

The SENTON&trade 4X4 MEGA RTR Short Course Truck’s ingenious modular design makes chassis components easy to access for maintenance. Its power module consists of a MEGA 550 motor, motor plate, slipper clutch assembly and gear cover. The power module can be detached from the chassis, as a complete unit, by removing just one screw. With the power module removed, the slipper clutch can be reached easily for adjustments by taking out three screws that attach the gear cover. The power module design also ensures that pinion and spur gear mesh is perfect every time, using numbered holes for different pinion gear sizes.

A two-piece molding screwed to the truck’s chassis serves as its electronics module, containing a waterproof radio box, servo mount, and ESC tray. The radio receiver mounts inside the radio box for protection from dirt and moisture. The ultra-compact ESC is screwed to the top of the module, allowing quick access to the on/off switch, while the servo mounts to the side. All three components can be removed together, quickly and easily.

Tough, multi-spoke black wheels with dBoots® Fortress tires give the SENTON&trade 4X4 MEGA RTR effective traction for bashing on almost any terrain. Multiple battery types can be used with the hook-and-loop mounting, from 6-cell NiMH packs to a 2S block pack.


  • Spektrum&trade STX2® 2.4GHz radio
  • 2-Channel SRX200 waterproof receiver
  • Built-in 3-position throttle limiter
  • Extended range and interference-free performance
  • Throttle/steering reversing
  • Throttle/steering travel adjust
  • Throttle limiting
  • ADS-5 waterproof 5kg-cm servo (70 oz-inch @ 6V)
  • MEGA 12T Brushed 550 motor
  • MEGA waterproof ESC
  • IC3&trade connectors (EC3&trade compatible)
  • Easy-access power module
  • Easy-access electronics module
  • Easy-access diff module removal front and rear
  • Oil-filled shocks
  • Super-smooth bearings
  • Super-tough metal gears
  • Tough multi-spoke black wheels and multi-terrain dBoots® Fortress tires
  • Adjustable body mounts
  • Adjustable ride height
  • Extended height dirt defenders
  • 2400mAh 8.4V 7-cell NiMH battery
  • ADC-N7 7-cell NiMH wall charger
  • 30 MPH (48km/h) speed achievable in optimum driving conditions with optional gearing
  • Waterproof

IC3&trade connectors (EC3&trade compatible)

The ARRMA® SENTON&trade 4X4 MEGA RTR Short Course Truck now comes with IC3&trade connectors so you can take full advantage of Spektrum Smart Technology. The IC series of connectors are also designed from the ground up to provide a more solid connection, higher heat resistance, and effortless installation. For those using the popular EC3&trade connectors, there’s no need to worry. The IC3 connector is entirely backwards compatible.

Spektrum&trade STX2® 2.4GHz radio

  • Complete 2.4GHz radio system including a 2Ch waterproof receiver
  • Built-in 3-position throttle limiter
  • Steering & throttle rate & trim adjustments with throttle and steering reversing
  • FHSS 2.4GHz protocol offers extended range and interference free performance
  • For details on waterproof standards, please refer to the product instruction manuals
  • Not compatible with DSM, DSM2 or DSMR 2.4GHz protocol

Power Module

Easy-access Power Module assembly can be removed from the vehicle in seconds, with the removal of just one single screw. The center shaft assembly is telescopic to assist with the easy disassembly and is sprung loaded to ensure it stays in position in use.

Power System

With the Power Module removed from the vehicle you can easily service your motor, single-pad slipper clutch, spur and pinion gears.The 4x4 MEGA power system features a high-torque 550 sized 12 turn brushed motor.

Electronics Module

Easy-access Electronics Module assembly can be removed from the vehicle with the removal of only 5 screws. With this module removed you can access the servo, electronic speed control and the receiver.The two-piece moulding comprises of a lower box and upper lid that are sealed with high-quality rubber seals. The ESC and steering servo are attached to this moulding, while the receiver sits inside the waterproof box.

Coil-over-oil shocks

Soaking up a wide range of surfaces is made easy with the included coil-over-oil shocks. Factory set to handle everything from fast speed runs to snow and mud chucking, no matter where you choose to bash, these high-quality units will keep you stable and in-control.The shock absorbers on the SENTON 4x4 MEGA feature keyed spring perch and self-bleed design. These shocks are designed to be simple to maintain, yet offer all the performance required to give amazing handling.

dBoots FORTRESS MT tires

High quality dBoots FORTRESS MT tires coupled with multi-spoke wheels offer superb bite on a multitude of surfaces.

Ready To Run

The SENTON 4X4 MEGA Monster Truck comes Ready To Run with everything you need other than standard AA transmitter batteries. Plus, with ideal driving conditions and using the optional gearing, you can achieve speeds of 30 mph. Just power it up and get ready to bash beyond your limits!


  • Assembled ARRMA RTR Senton MEGA 4x4 Short Course Truck
  • MEGA 12T 550 Brushed Motor
  • Spektrum 2.4GHZ STX2 Transmitter wSRX200 Receiver
  • 2400mAh 8.4 7-cell NiMH Battery wIC3 Connector (EC3 Compatible)
  • Wall Charger
  • Painted Body, Instruction Manual


  • AA Batteries: Four for transmitter



  • Length: 22 (558mm)
  • Width: 11.7 (298mm)
  • Height: 8.2 (208mm)
  • Weight: 6.6lbs (2.88kg) including battery
  • Ground Clearance: 1.26 (32mm)
  • Standard Final Gear Ratio Range: 9.71 - 18.72
  • Front Shock Spring Rate: 82gfmm
  • Rear Shock Spring Rate: 62gfmm
  • Battery Dimensions: 5.5 x 2 x 1.9 (140 x 51 x 48mm)
  • with battery mounting blocks in place
  • Max Battery Dimensions: 6.50 x 2 x 1.9 (165 x 51 x 48mm)
  • with battery mounting blocks removed
  • Differential Crown Gear Specification: 49T 1M
  • Differential Pinion Gear Specification: 17T 1M
  • Internal Gear Ratio: 2.88


  • Length: 20.7 (527mm)
  • Width: 9.8 (250mm) behind front wheels, narrowest point
  • 11.6 (296mm) at rear wheels, widest point
  • Height: 5.8 (147mm)
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