SKU: 9857155519

ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Battery & Charger, Green

Sale price$134.99 Regular price$149.99
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Description

ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Battery & Charger, GreenARRMA 1 18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Battery & Charger, Green Features Awesome monster truck styling with three color choices Powerful Spektrum 2S LiPo battery & safe, easy to use charger Easy body attachment and removal Enclosed drivetrain for all terrain protection Reliable, high quality hex hardware Durable composite chassis High traction 4WD transmission Tough metal gears Independent suspension and oil filled, coil

  • ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Battery & Charger, Green
  • Features

    • Awesome monster truck styling with three color choices
    • Powerful Spektrum 2S LiPo battery & safe, easy-to-use charger
    • Easy body attachment and removal
    • Enclosed drivetrain for all-terrain protection
    • Reliable, high-quality hex hardware
    • Durable composite chassis
    • High-traction 4WD transmission
    • Tough metal gears
    • Independent suspension and oil-filled, coil-over shocks
    • Tough monster 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 warranty (see website for details)

    Overview

    Amped-up ARRMA® RC blasting gets "fun-sized" with the fast, 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 big dose of genuine ARRMA performance and durability whenever you get the urge to bash.

    Enjoy some after-school RC monster truck action with friends. Sneak in a little bashing during your office lunch break. Whether you're a young beginner or an experienced RC basher, the GRANITE GROM easily fits time for ARRMA RC bashing into your way of life. It's tough, fast — and conveniently small.

    Unlike many manufacturers of mini RC models, ARRMA made no compromises when shrinking this basher down to small scale size. The GRANITE GROM 4X4 Monster Truck is precision-engineered to the same high standards as larger ARRMA RC vehicles. It also has a clipless body mount design that keeps the body securely attached but easy to remove for all drivers, young and old. Among small scale RC basher models it's in a league of its own, with convenience plus the power, strength, and handling capabilities you need to get serious about your stunts.

    The ARRMA GRANITE GROM 4X4 Monster Truck endures any punishment 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 monster 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 bashing in any conditions.

    If you're a first-time RC basher, the Spektrum 2.4GHz SLT2 transmitter helps you learn control skills safely by limiting the monster truck's maximum speed to 50% or 75% until you're ready to handle it all. Recharging the included Spektrum Smart 2S LiPo battery is also worry-free. Just plug it into the supplied Spektrum S10 Smart G2 Mini 2S USB-C Charger with the attached IC2 connectors. Smart technology instantly takes care of the rest. In about an hour, your battery is safely recharged and ready for another round of fun.

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

    Take advantage of small scale value and versatility with the GRANITE GROM 4X4 Monster Truck RTR, and experience ARRMA RC bashing excellence for yourself.

    Video Overview

     

    Under The Hood

     

     
    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.

     

    *For details on waterproof standards, please refer to the product instruction manuals.

    Product Specifications

    Manufacturer # 660132924553
    Power Type Electric
    Gear Pitch 0.5MOD
    Servos Included
    Charger Included
    Receiver Included
    Shock Type Oil-Filled, Coil-Over Springs
    Battery Included
    Connector Type IC2
    Motor Size 380 28T
    Product Length 9.84" (250 mm)
    Spur Gear 59T
    Suspension Independent
    Motor Type Brushed
    Speed Control Included
    Wheelbase 6.5" (165 mm)
    Power System MEGA
    Product Width 7.87" (200 mm)
    Radio Included
    Technology SLT Protocol
    Product Weight 1.77lb (800g) with Battery
    Tire Tread dBoots® FORTRESS™
    Vehicle Type Monster Truck
    Water-Resistant Yes
    Ball Bearings Rubber-shielded Bearings
    Chassis Composite
    Completion Level Ready-To-Run
    Drivetrain 4WD
    Drive Type Forward/Brake/Reverse
    Product Height 4.65" (118 mm)
    Top Speed 20+
    Approximate Assembly Time Less than 1 Hour
    Body Pre-painted, Decaled
    Brakes Integral with ESC
    Pinion 16T
    Scale 1/18
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9857155519

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4.1 ★★★★★
Based on 13 reviews
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Product Reviews
A
Verified Purchase
Alex caine
Lowell, US
★★★★★ 1
Awful.
Color: Black, Size: 22"- 4 Panel
Easiest one star review ever. I'm writing this with bloody fingers from assembling this. Multiple poles were bent, none of the pole connectors worked, the hex wrench broke in my hand, the screws didn't really go into the holes provided (I had to get a friend with a press drill to widen the holes to make it work), there are sharp edges on the poles where there is a seam, and doesn't look that great once assembled. Easy do not buy, the only reason I didn't return is because it would have been tough to disassemble the half I got through in the first 5 hours of building (mostly spent fixing the product delivered)
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Reviewed in the United States on December 30, 2025
P
Verified Purchase
Pat Smith
Birmingham, US
★★★★★ 5
Excellent quality, excellent privacy.
Color: White, Size: 4 Panel
I love this room divider! Was easy to put together. It's easy to move around. I also bought the eight panel. I move it and change it around all the time. Good color good material good privacy.
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Reviewed in the United States on May 12, 2026
S
Verified Purchase
Skylar Hartnett
Carnegie, US
★★★★★ 5
It works to divide a room, but it's not easy to use.
Color: Grey, Size: 6 Panel
This comes in multiple pieces and you have to build every single piece including the cloth that is between the two poles. There are plastic clips to hold the sections together, but they easily come off if you move the dividers the wrong way or try to reposition it. The only thing holding it up is rectangular shaped feet on the bottom and they are a pain when you hit it with your toes. It works if you need to divide a room, but its not pretty and there are far better options. It's cheaply made and has a habit of falling down if you are trying to use it in a straight or slightly angled line.
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Reviewed in the United States on December 26, 2022
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Verified Purchase
Amazon Customer swengelp
Cuba, US
★★★★★ 4
Nice divider
Color: Black, Size: 6 Panel
Nice divider. Set up is a bear. I am a bit concerned with stability. Overall I like it.
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Reviewed in the United States on March 12, 2026
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Verified Purchase
Nay from the Bay
Belleville, US
★★★★★ 5
Great privacy room divider
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
I got this room divider for our game room that shares the garage/laundry room, to separate the spaces. I was happy that it was relatively easy to put together in less than an hour with nothing more than a screwdriver (provided) although I used a small handheld drill. The instructions were pretty straightforward and easy to understand as everything was labeled. I have 2 small grandkids at home running around while I put this together so my timeline to completion might be longer than others. It recommends 2 people to assemble, but I was able to complete alone in about 40 minutes total and as I said I used a small handheld drill, (although it does come with a small Philips screwdriver) which is the only tool you need for assembly. The first two panels took me about 20 minutes but the other 4 were simple repeats after the initial 2. After all 6 panels were assembled the plastic clips to piece them together were literally a "SNAP" to put on. The poles are made of metal and the panels are made of a very sturdy almost canvas like fabric. When held up to the light not a lot shined through so very good for privacy. You can snap them together in sections and have 2 separate panels of 3 or what ever configuration you want. They are easy to move and bend around furniture or other obstacles, also fold flat together if you need to put them aside for storage. This worked out just as we had planned, very easy to move around when needed and I am very happy with this product. I loved how simple it was to put together, easy instructions, and the durability and functionality of it.
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Reviewed in the United States on December 29, 2024

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