The faster, tougher design of the ARRMA SENTON 4X4 MEGA 550 Short Course Truck amplifies your racing thrills as only ARRMA can! The ARRMA design team has loaded this RC short track RC truck with every advantage a new driver could want — 1/10 scale realism, ready-to-run simplicity, and 30+ mph speed potential with full-time 4WD traction and power. Equipped out of the box with a 7C NiMH battery, this truck can also easily be upgraded with a 2S LiPo to take the speed, run time, and excitement to a whole new level.

• MEGA 12T brushed 550 motor
• MEGA waterproof ESC
• IC3™ connectors (EC3™) compatible
• 30MPH (48km/h) speed achievable in optimum driving conditions with optional gearing
• Ready to Run (RTR) comes fully assembled with everything needed besides AA batteries!

Product Details

In The Box

• (1) ARRMA® SENTON™ 4X4 MEGA 550 1/10 Scale 4WD Short Course Truck RTR
• (1) MEGA Waterproof* ESC
• (1) MEGA 12T Brushed 550 Motor
• (1) Spektrum™ Waterproof* SPMS650 Digital Servo
• (1) Spektrum™ SLR300 Receiver
• (1) Spektrum™ 2.4GHz SLT3™ 3-Channel Transmitter
• (1) Dynamite® 3300mAh 8.4V 7-Cell Speedpack® 2 Hump NiMH Battery
• (1) ADC-N7 7-Cell NiMH Wall Charger
• (1) 1/10 SENTON 4WD V3 MEGA Manual

Needed to Complete

• (4) AA Batteries

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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 body design, front and rear bumpers, paint and decals
• New vented tires
• MEGA 12T brushed 550 motor
• MEGA waterproof* ESC* Note: For details on waterproof standards, refer to the instruction manual
• 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
• Multi-terrain dBoots® Fortress™ SC tires
• Tough multi-spoke black wheels
• ADC-N7 7-cell NiMH wall charger
• 2-year limited warranty (see website for details)
• 30MPH (48km/h) speed achievable in optimum driving conditions with optional gearing

Overview

The best short course RC truck for first-time bashing through amplified all-road blasting is the ARRMA SENTON 4X4 MEGA 550 RTR. Though easy to drive, affordably priced, and ready-to-run — even a 7C NiMH battery and USB charger are included — its aggressive 1/10 scale styling hints at high-speed excitement that’s ahead. Speeds of 30+ mph are achievable under optimum conditions. From its full-time 4WD transmission to the large diff gears, every part of the ARRMA SENTON 4X4 MEGA 550 has been engineered by the ARRMA design team of RC enthusiasts to survive brutal blasting. The remote control short course truck’s smooth handling has you looking like a winner right off the starting line, and its wide wheelbase and vented tires let you put the hammer down on nearly any off-road or paved surface. An innovative modular chassis simplifies maintenance and repairs, cutting down time to the bone. The included Spektrum radio lets you limit top speeds to 50% or 75% of full throttle until you’re ready for it all, and its ergonomic grip fits your hand like a glove. ARRMA includes a high capacity NiMH battery. You can also upgrade easily to 2S LiPo power to take your RC 4x4 fun to the next level. Fully assembled and ready-to-run, the ARRMA SENTON 4X4 MEGA 550 Brushed RTR needs nothing more than four AA batteries before you’re ready to make your move!

Spektrum™ 3-Channel SLT3™ 2.4GHz radio and SLR300 Waterproof* Receiver

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

Dynamite® 3300mAh 8.4V 7-Cell Speedpack® 2 Hump 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*

* Note: For details on waterproof standards, refer to the instruction manual  

Strengthened Chassis

Stronger chassis and retained hinge pin plates  

Larger pull tab on power module

Castellated slipper pad and sliding gear mesh

Rubber shielded bearings

Redesigned Steering

Steering with more clearance for stones.  

Tougher brushless ready transmission

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

Sealed Wheels & Vented Tires

Stops dirt getting in and allows water to escape.  

dBoots® Fortress™ SC tires

Tough, multi-spoke black SC wheels with vented dBoots® Fortress™ SC tires give the SENTON™ 4X4 MEGA RTR effective traction for bashing on almost any terrain.  

Silicone O-rings

Oil-filled shocks with silicone O-rings  

Heavy-Duty Bumpers

Impact absorbing.  

Proven Power Package

• MEGA 12T brushed 550 motor
• MEGA waterproof* ESC* Note: For details on waterproof standards, refer to the instruction manual
• IC3™ connectors (EC3™) compatible

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.

Easy-access electronics module

• Two-piece molding screwed to the chassis contains a waterproof receiver box, servo mount, and ESC tray.
• Receiver mounts inside sealed module for protection from dirt and moisture.
• ESC screws to the top for easy maintenance and switch access.
• Servo mounts on the side for quick servicing.

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.

Proven tough composite shock towers

Product Specifications

ReceiverI: ncluded

Shock Type: Oil-Filled, Coil-Over Springs

Charger: Included

Differential: 2 Gear Diffs

Power Type: Electric

Gear Pitch: 48-pitch

Servos: Included

Front Track: 11.73 in (298mm)

Power System: MEGA

Product Width: 12.01" (305 mm)

Radio: Included

Product Weight: 6.49 lb

Tire Tread: dBoots Fortress

Vehicle Type: Short Course Truck

Water-Resistant: Yes

Body: Painted, decalled and trimmed

Pinion: 17T

Scale: 1/10

Motor Type: Brushed

Rear Track: 11.73 in (298mm)

Speed Control: Included

Wheelbase: 12.87 in (327mm)

Final Drive Ratio: 15.26

Technology: SLT Protocol

Battery: Included

Connector Type: IC3, EC3

Internal Gear Ratio: 2.85

Product Length: 21.97" (558 mm)

Spur Gear: 91T

Steering Type: 2WS

Suspension: Independent

Ground Clearance: 1.26 in (32mm)

Ball Bearings: Transmission

Chassis: Molded Composite

Completion Level: Ready-To-Run

Drivetrain: 4WD

Drive Type: Forward/Brake/Reverse

Product Height: 8.27" (210 mm)

Top Speed: 30+

Wheel Hex Size: 14mm