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ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba (ARRMA 2102T3 | ARA2102T3)

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Model: ARRMA 2102T3
Dist. #: ARA2102T3   SKU: ARA2102T3

Customer Reviews: Rated 5.0 stars 5 of 5 (1 Review)

Shipping: In Stock For Shipping
Store Pickup:

South Jordan, UT
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Price:  $149.99

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Updated on Mar 29, 2026 08:49:27 AM

1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba...








Features






  • Awesome beast truck styling with 3 color choices

  • Powerful Spektrum 2S LiPo battery & safe, user friendly charger

  • Easy body attachment and removal

  • Confined drivetrain for all-terrain defense

  • Reliable, high-quality hex hardware

  • Durable composite chassis

  • High-traction 4WD transmission

  • Hard metal equipments





  • Independent suspension and oil-filled, coil-over shocks

  • Hard beast truck wheels and tires

  • Impact-absorbing front and rear bumper

  • Spektrum SLT2 2-channel 2.4GHz radio

  • Spektrum SLT 2-in-1 25A waterproof ESC and receiver

  • Spektrum SX110 waterproof metal-geared servo

  • 2-Year minimal guarantee (see website for information)








Overview


Amped-up ARRMA® RC blasting gets "fun-sized" with the quick|quick}, tough, and ready-to-run GRANITE GROM 4X4 Monster Truck. At 1/18 scale, it's small enough to bring anywhere. And the GRANITE GROM delivers a huge dose of authentic ARRMA performance and sturdiness whenever you get the urge to bash.


Delight in some after-school RC beast truck action with good friends. Sneak in a little bashing throughout your workplace lunch break. Whether you're a young newbie or an experienced RC basher, the GRANITE GROM quickly fits time for ARRMA RC bashing into your way of living. It's tough, fast — and conveniently small.


Unlike lots of makers of small RC designs, ARRMA made no compromises when shrinking this basher to small scale size. The GRANITE GROM 4X4 Monster Truck is precision-engineered to the exact same high requirements as bigger ARRMA RC lorries. It also has a clipless body mount design that keeps the body safely connected but easy to get rid of for all chauffeurs, young and old. Amongst small scale RC basher designs it's in a league of its own, with benefit plus the power, strength, and handling abilities you need to get serious about your stunts.


The ARRMA GRANITE GROM 4X4 Monster Truck endures any penalty you can dish out. Impact-absorbing front and rear bumpers are the bash-ready bookends to its strong composite chassis. A 4WD transmission with robust metal equipments carries power from the MEGA 380 brushed motor through an enclosed drivetrain to the tough dBoots® FORTRESS beast truck wheels and tires. Even the Spektrum SX110 steering servo has metal equipments — and, like the IC2® connector-equipped Spektrum SLT 2-in-1 25A ESC and receiver, it's waterproof for carefree bashing in any conditions.


If you're a novice RC basher, the Spektrum 2.4GHz SLT2 transmitter assists you discover control skills safely by restricting the beast truck's maximum speed to 50% or 75% up until you're prepared to handle everything. Recharging the included Spektrum Smart 2S LiPo battery is also stress-free. Just plug it into the supplied Spektrum S10 Smart G2 Mini Two USB-C Charger with the connected IC2 adapters. Smart innovation immediately looks after the rest. In about an hour, your battery is safely charged and prepared for another round of fun.


Whatever you'll need to the run the GRANITE GROM can be found in the box. The truck body is expertly factory-finished in your option of 3 dazzling, resilient color pattern. GRANITE GROM upgrade parts are offered for cranking up its abilities past eleven. They consist of a Metal Axle & Wheel Hub Set, Aluminum Shock Set, Adjustable Steering Hyperlinks, and a two-piece, assembled Oil-Filled Differential Set.


Benefit from small scale value and adaptability with the GRANITE GROM 4X4 Monster Truck RTR, and experience ARRMA RC bashing quality for yourself.







Video Overview








 






Under The Hood








 








BASH-ANYWHERE SMALL SCALE SIZE
BASH-ANYWHERE SMALL SCALE SIZE

The ARRMA GRANITE GROM 4X4 Monster Truck RTR is crafted and produced to the exact same high requirements of sturdiness and performance that you anticipate from any ARRMA vehicle. It's simply smaller!


 



REMARKABLE BEAST TRUCK LOOKS
AWESOME MONSTER TRUCK LOOKS

Right out of the box, the beast truck body comes expertly factory-finished in your option of 3 dazzling, resilient color pattern. Hard dBoots® FORTRESS beast truck wheels and tires add powerful looks and all-terrain traction.


 









CLIP-FREE BODY ACCESSORY
CLIP-FREE BODY ATTACHMENT

The GRANITE GROM beast truck body snaps onto the chassis quickly, quickly, and safely. It comes off with a basic press-and-release. Without any small clips to force into location, it's a body attachment system that any ages can successfully manage.


 



HARD METAL EQUIPMENTS
TOUGH METAL GEARS

Delight in carefree bashing with your ARRMA GRANITE GROM beast truck in any conditions. The transmission is fully metal tailored for sturdiness. Even the installed Spektrum SX110 waterproof steering servo has tough metal equipments.


 










RUGGED 4-WHEEL DRIVE TRANSMISSION
RUGGED 4-WHEEL DRIVE TRANSMISSION

The high-traction 4-wheel drive transmission includes rugged metal equipments. 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 reliable performance on all terrain.


 









FAST, SAFE BATTERY CHARGING
FAST, SAFE BATTERY CHARGING

The Spektrum Smart 2S LiPo battery with IC2 adapters supplies the power for long run times. When it's time to charge, simply plug it into the practical Spektrum Smart G2 S10 USB-C Charger. Safe charging starts automatically and only takes about an hour.


 



EASY-TO-USE SPEKTRUM 2.4GHz SLT2 TRANSMITTER
EASY-TO-USE SPEKTRUM 2.4GHz SLT2 TRANSMITTER

The high-quality Spektrum SLT2 2-channel transmitter is the best size for all chauffeurs. It can assist you discover control skills safely by restricting the beast truck's maximum speed to 50% or 75% up until you're prepared for everything. 4 AA batteries included.


 








*For information on waterproof requirements, please refer to the item user's manual.





Frequently Bought Together

ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba
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ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba
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ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba
This Item: ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba
$149.99
ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba
$149.99
ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba
$149.99

Total Price: $449.97

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Rated 5 stars Fun mini scale basher
By Ben S on November 10, 2023   Verified Purchase

Worked great out of the box. Pretty quick for the size and brushed 2S in the house.

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