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Product Overview
Fast, rugged and factory-built, the 2S LiPo-compatible Arrma 550 Mega range of vehicles comes ready to bash on any terrain. Built for exciting bashing speeds and extreme, all-terrain durability. New features to enhance its unstoppable performance include a stronger chassis and retained hinge pin plates; steering with more clearance for stones; a castellated slipper pad and sliding gear mesh; and rubber shielded bearings throughout.

The new 550 Mega range of Arrma vehicles now also includes the Spektrum SLT3 transmitter and SLR300 receiver. The transmitter is ergonomically designed for long periods of fatigue-free driving and has a foam wheel for precise fingertip control plus an improved hand grip and trigger feel. New bashers will be able to set throttle limits at 50% or 75% until they are ready to use the full speed potential. The SLT3 is compatible with Tactic SLT receivers to run other RTR vehicles you may own, and includes a third channel to control optional features such as lights and winches on models that have them.

It retains the ingenious modular design perfected by ARRMA engineers for easy component access and maintenance. The power module, with improved dirt management, 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 receiver box, servo mount and ESC tray. The SLR300 receiver mounts inside the receiver 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.

The differential module houses each differential unit in an innovative yoke design. Only eight screws need to be removed to release the front and rear yokes. The power module can then be detached, allowing you to pivot the gearbox cases for differential access. The 4X4 MEGA RTR comes brushless-ready with 37T 1.35mod diffs with silicone O-rings. The large gears can withstand huge torque, and internal metal gears have been chosen for reliability during extreme bashing.

Its full-time 4WD transmission uses strong front, rear, and centerline telescopic 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 new included, waterproof Spektrum SPMS650 digital servo offers 20% more torque than the previous version's ADS-5 servo.

The self-bleeding, oil-filled shocks, now with silicone O-rings, 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. Shock-absorbing loops keep the front and rear bumpers secured to the chassis, offering defense against heavy impacts.





Features
  • Stronger chassis and retained hinge pin plates
  • Steering with more clearance for stones
  • Castellated slipper pad and sliding gear mesh
  • 23T Spline servo saver
  • Brushless-ready 37T 1.35Mod diffs with silicone O-rings
  • Power Module with sliding gear mesh and improved dirt management
  • Rubber shielded bearings throughout
  • Oil-filled shocks with silicone O-rings
  • New vented tyres
  • MEGA 12T brushed 550 motor
  • MEGA waterproof* ESC
  • IC3 connectors (EC3) compatible
  • Signature easy-access modular design
    • Easy-access power module
    • Easy-access electronics module
    • Easy-access diff module removal front and rear
  • Double wishbone suspension front and rear
  • Metal-geared differentials
  • Adjustable ride height
  • Adjustable body mounts
  • Extended height dirt defenders
  • ADC-N7 7-cell NiMH wall charger
  • 30MPH (48km/h) speed achievable in optimum driving conditions with optional gearing




Spektrum SLT3 radio and SLR300 Receiver

  • Fast response SLT protocol
  • Foam wheel
  • Improved grip and trigger feel and force
  • 2-way thumb switch third channel
  • 50% and 75% Throttle mode (for beginners)
  • Tactic SLT receiver compatible


Dynamite 3300mAh 7-Cell NiMH Battery

  • 35% more run time over the 2400mAh pack in the previous version
  • 7 cell NiMH Hump Pack
  • 3300mAh capacity
  • 8.4 Volts
  • Factory-fitted IC3 Connector (EC3 Compatible)


Spektrum SPMS650 digital servo

  • 84 oz-in (6 kg-cm) @ 6V
  • 20% more torque than the previous ADS-5 servo for improved steering feel
  • Waterproof*




Easy-access power module

  • Detaches from chassis as a complete unit by removing one screw.
  • Contains motor, motor plate, slipper clutch assembly and gear cover.


Metal-geared differentials

  • Large gears can withstand huge torque, and internal metal gears have been chosen for reliability during extreme bashing.
  • Easy-access front and rear diff module removal.




Sealed Wheels & Vented Tyres

Stops dirt getting in and allows water to escape.


Tougher brushless ready transmission

Metal input spline moulded into composite gear. Same gears as the ARRMA 4S.


Strengthened Chassis

Stronger chassis and retained hinge pin plates


Image Item Id Name Trade SSP Order
Now





Needed to Complete

  • (4) AA Batteries

  • What's in the Box?
    • (1) ARRMA GRANITE 4X4 MEGA 550 1/10 Scale 4WD Electric Monster Truck RTR
    • (1) MEGA Waterproof* ESC
    • (1) MEGA 12T Brushed 550 Motor
    • (1) Spektrum 2.4GHz SLT3T 3-Channel Transmitter
    • (1) Spektrum SLR300 Receiver
    • (1) Spektrum Waterproof* SPMS650 Digital Servo
    • (1) Dynamite 3300mAh 8.4V 7-Cell Speedpack 2 Hump NiMH Battery
    • (1) ADC-N7 7-Cell NiMH Wall Charger
    • (1) Product Manual




    Needed to Complete

  • (4) AA Batteries

  • What's in the Box?
    • (1) ARRMA SENTON 4X4 MEGA 550 1/10 Scale 4WD Electric Short Course Truck RTR
    • (1) MEGA Waterproof* ESC
    • (1) MEGA 12T Brushed 550 Motor
    • (1) Spektrum 2.4GHz SLT3T 3-Channel Transmitter
    • (1) Spektrum SLR300 Receiver
    • (1) Spektrum Waterproof* SPMS650 Digital Servo
    • (1) Dynamite 3300mAh 8.4V 7-Cell Speedpack 2 Hump NiMH Battery
    • (1) ADC-N7 7-Cell NiMH Wall Charger
    • (1) Product Manual




    Needed to Complete

  • (4) AA Batteries

  • What's in the Box?
    • (1) ARRMA TYPHON 4X4 MEGA 550 1/8 Scale 4WD Electric Speed Buggy RTR
    • (1) MEGA Waterproof* ESC
    • (1) MEGA 12T Brushed 550 Motor
    • (1) Spektrum 2.4GHz SLT3T 3-Channel Transmitter
    • (1) Spektrum SLR300 Receiver
    • (1) Spektrum Waterproof* SPMS650 Digital Servo
    • (1) Dynamite 3300mAh 8.4V 7-Cell Speedpack 2 Hump NiMH Battery
    • (1) ADC-N7 7-Cell NiMH Wall Charger
    • (1) Product Manual
    *For details on waterproof standards, refer to the instruction manual.








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