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ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Ba (ARRMA 2102T1 | ARA2102T1)

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Model: ARRMA 2102T1
Dist. #: ARA2102T1   SKU: ARA2102T1

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South Jordan, UT
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Price:  $149.99

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Updated on Apr 19, 2026 05:16:14 AM

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








Features






  • Incredible beast truck styling with 3 color options

  • Powerful Spektrum two LiPo battery & safe, user friendly charger

  • Easy body attachment and elimination

  • Confined drivetrain for all-terrain security

  • Reputable, high-quality hex hardware

  • Long lasting composite chassis

  • High-traction 4WD transmission

  • Hard metal gears





  • 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 limited guarantee (see site 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 take along anywhere. And the GRANITE GROM delivers a huge dose of genuine ARRMA performance and toughness whenever you get the urge to slam.


Take pleasure in some after-school RC beast truck action with pals. Sneak in a little slamming during your workplace lunch break. Whether you're a young novice or an experienced RC basher, the GRANITE GROM quickly fits time for ARRMA RC slamming into your lifestyle. It's tough, fast — and conveniently small.


Unlike numerous makers of mini RC designs, ARRMA made no compromises when diminishing this basher down 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 likewise has a clipless body mount style that keeps the body safely connected but easy to eliminate for all drivers, young and old. Among small scale RC basher designs it's in a league of its own, with convenience plus the power, strength, and managing capabilities 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 gears 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 gears — and, like the IC2® connector-equipped Spektrum SLT 2-in-1 25A ESC and receiver, it's waterproof for carefree slamming in any conditions.


If you're a novice RC basher, the Spektrum 2.4GHz SLT2 transmitter helps you find out control abilities safely by limiting the beast truck's maximum speed to 50% or 75% until you're ready to handle everything. Charging the included Spektrum Smart two LiPo battery is likewise worry-free. Simply plug it into the supplied Spektrum S10 Smart G2 Mini 2S USB-C Charger with the connected IC2 adapters. Smart innovation quickly looks after the rest. In about an hour, your battery is safely recharged and ready for another round of enjoyable.


Whatever you'll need to the run the GRANITE GROM comes in the box. The truck body is professionally factory-finished in your option of 3 fantastic, resilient color schemes. GRANITE GROM upgrade parts are readily available for cranking up its capabilities past eleven. They include a Metal Axle & Wheel Center Set, Aluminum Shock Set, Adjustable Steering Links, and a two-piece, assembled Oil-Filled Differential Set.


Take advantage of small scale worth and versatility with the GRANITE GROM 4X4 Monster Truck RTR, and experience ARRMA RC slamming excellence 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 made to the exact same high requirements of toughness and performance that you anticipate from any ARRMA lorry. It's just smaller!


 



AWESOME BEAST TRUCK LOOKS
AWESOME MONSTER TRUCK LOOKS

Right out of the box, the beast truck body comes professionally factory-finished in your option of 3 fantastic, resilient color schemes. Hard dBoots® FORTRESS beast truck wheels and tires include effective appearances and all-terrain traction.


 









CLIP-FREE BODY ATTACHMENT
CLIP-FREE BODY ATTACHMENT

The GRANITE GROM beast truck body snaps onto the chassis quickly, quickly, and safely. It comes off with a simple press-and-release. With no tiny clips to force into place, it's a body attachment system that any ages can successfully manage.


 



DIFFICULT METAL GEARS
TOUGH METAL GEARS

Take pleasure in carefree slamming with your ARRMA GRANITE GROM beast truck in any conditions. The transmission is completely metal tailored for toughness. Even the installed Spektrum SX110 waterproof steering servo has tough metal gears.


 










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

The high-traction 4-wheel drive transmission includes rugged metal gears. It carries power from the installed MEGA 380 brushed motor to the wheels through an enclosed drivetrain. The whole power system is well-protected for dependable performance on all terrain.


 









FAST, SAFE BATTERY CHARGING
FAST, SAFE BATTERY CHARGING

The Spektrum Smart two LiPo battery with IC2 adapters provides the power for long run times. When it's time to charge, just plug it into the convenient Spektrum Smart G2 S10 USB-C Battery Charger. Safe charging starts automatically and just 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 perfect size for all drivers. It can assist you find out control abilities safely by limiting the beast truck's maximum speed to 50% or 75% until you're ready for everything. 4 AA batteries included.


 








*For information on waterproof requirements, please refer to the item instruction manuals.





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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