Amped-up ARRMA RC bashing fun – now in a "fun-sized" package! The ARRMA® GRANITE™ GROM 4X4 Monster Truck is tough, fast, and compact – the perfect companion for on-the-go RC action. Whether you're a beginner or a seasoned basher, this 1/18 scale mini monster delivers serious performance with the durability you expect from ARRMA.
At Aerobertics, we love how this little beast fits easily into your lifestyle – from after-school fun to lunchtime parking lot sessions. Small enough to take anywhere, yet engineered to the same high standards as larger ARRMA vehicles, the GRANITE GROM is ready to bash anytime, anywhere.
BASH-ANYWHERE SMALL SCALE SIZE
The ARRMA GRANITE GROM 4X4 Monster Truck RTR is engineered and manufactured to the same high standards of durability and performance that you expect from any ARRMA vehicle. It's just smaller!
AWESOME MONSTER TRUCK LOOKS
Right out of the box, the monster truck body comes professionally factory-finished in your choice of three brilliant, durable color schemes. Tough dBoots® FORTRESS™ monster truck wheels and tires add powerful looks and all-terrain traction.
CLIP-FREE BODY ATTACHMENT
The GRANITE GROM monster truck body snaps onto the chassis easily, quickly, and securely. It comes off with a simple press-and-release. With no tiny clips to force into place, it's a body attachment system that all ages can successfully manage.
TOUGH METAL GEARS
Enjoy carefree bashing with your ARRMA GRANITE GROM monster truck in any conditions. The transmission is fully metal geared for durability. Even the installed Spektrum SX110 waterproof steering servo has tough metal gears.
RUGGED 4-WHEEL DRIVE TRANSMISSION
The high-traction 4-wheel drive transmission features rugged metal gears. It carries power from the installed MEGA 380 brushed motor to the wheels through an enclosed drivetrain. The entire power system is well-protected for dependable performance on all terrain.
FAST, SAFE BATTERY CHARGING
The Spektrum Smart 2S LiPo battery with IC2 connectors provides the power for long run times. When it's time to recharge, just plug it into the convenient Spektrum Smart G2 S10 USB-C Charger. Safe charging begins automatically and only takes about an hour.
EASY-TO-USE SPEKTRUM 2.4GHz SLT2 TRANSMITTER
The high-quality Spektrum SLT2 2-channel transmitter is the perfect size for all drivers. It can help you learn control skills safely by limiting the monster truck's maximum speed to 50% or 75% until you're ready for it all. Four AA batteries included.
Key Features
Rugged 1/18 scale 4X4 monster truck platform
Factory-finished body in three bold, durable color options
Clipless body mount system for quick, easy access
Fully enclosed drivetrain for protection on any terrain
Waterproof electronics for all-weather fun
Durable composite chassis with independent suspension
Spektrum SLT2 2.4GHz radio with throttle limit (50%, 75%, 100%)
Spektrum 25A waterproof 2-in-1 ESC/receiver
Smart-ready Spektrum 2S 1400mAh LiPo battery and USB-C charger
All included – just add a USB wall adapter
Built Tough for Real Bashing
The GRANITE GROM doesn’t compromise on quality. With metal gears, oil-filled shocks, and rubber-shielded bearings, it’s built to handle hard hits and high-speed stunts. Front and rear impact bumpers absorb collisions, while the 4WD drivetrain delivers excellent control and traction over rough terrain.
Smart, Safe, and Ready to Run
Perfect for new drivers, the included Spektrum SLT2 transmitter allows you to limit speed for learning, then unleash full performance when you're ready. Charging is just as easy with the Smart G2 mini USB-C charger – plug in the included battery and let the charger do the rest.
(1) USB power adapter with QC 2.0/3.0 (18W minimum)
Product Specifications
Scale: 1/18 Mini
Length: 250 mm
Width: 200 mm
Height: 118 mm
Wheelbase: 165 mm
Weight (with battery): 800 g
Top Speed: 20+ km/h
Drive: 4WD
Motor: Brushed MEGA 380 28T
Battery: Spektrum Smart 2S LiPo 1400mAh
Charger: Included (USB-C Smart G2 Mini)
Suspension: Independent, oil-filled shocks
Radio System: Spektrum SLT2 2.4GHz
Water-Resistant: Yes
Warranty: 2-Year limited (see ARRMA website for full details)
Take your first step into the world of ARRMA RC excellence with the GRANITE GROM 4X4 – compact in size, massive in performance. Available now at Aerobertics – where RC fun begins.
General Info
Brand
Arrma
Item Nr
ARA2102T1
Car - Model Type
Car Type
Off-road & 4x4 Cars
Age Requirement
Age 8+
Skill Level
Beginner
Completion Level
RTR - Ready To Run
Assembly Time
No Assembly Required
Drive Train
4WD
Power System
2S
Motor Type
Brushed
Recommended Environment
All Terrain
Top Speed (km/h)
20,00
Car - Dimensions
Model Scale
1/18 Scale
Length (mm)
250,00
Height (mm)
118,00
Wheelbase (mm)
165,00
Weight (g)
800,00
Car - Electronics
Motor
Arrma - MEGA 380 28T Brushed Motor (Included)
Power Battery
Spektrum - Smart 7.4V 1400mAh 2S 30C Hard Case LiPo Battery w/IC2 (Included)
