SKU: 86084186854

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

Sale price$134.99 Regular price$149.99
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Battery & Charger, RedARRMA 1 18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR with Battery & Charger, Red 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, Red
  • 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: 86084186854

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Matthew Sanganza
Massapequa, US
★★★★★ 5
Sturdy, Easy to Set Up, and Looks Great
Color: Grey, Size: 34" - 3 Panel
I’m really happy with this RANTILA 3-panel room divider. It was simple to set up, stands securely on its own, and gives plenty of privacy. The height is perfect, and the panels look clean and modern in my space. It’s lightweight enough to move around but still feels sturdy. Overall, a great divider that works exactly as I needed.
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Reviewed in the United States on November 14, 2025
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Margaret Johnson
Houston, US
★★★★★ 5
Not 6 ft
Color: Grey, Size: 34" - 3 Panel
I bought this for filming my auditions. I am 5’4” .The height lists is 6 ft but the fabric only reaches 5’9 1/2 “! when I must film myself head to toe, the top bars are showing. It’s easy to set up. But when I film I must tilt my camera to keep the top bars out of frame which is not acceptable.
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Reviewed in the United States on May 1, 2026
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andrea cicalo
Houston, US
★★★★★ 4
Perfect for what I needed - getting a 2nd one.
Color: Black, Size: 22" - 4 Panel
Putting it together was a BEE-OTCH!! Yes, one of the tubes had the top cap installed at the wrong end (& getting it off required tools), and yes, stretching the fabric to get the screws in was incredibly hard...but am I buying another one? YES! After all is said and done, this is a great room divider. I opted out of installing the paddle feet & it still works perfect. It won't filter light all that great and even though it stands on its own, it can be blown over easily - but for the price? Excellent. If I wanted a heavy duty, thicker, more expensive one, I would've bought one. The 2nd one is on the way. Perfect height, no weird smell, nice and light and easy to move around.
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Reviewed in the United States on September 30, 2025
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Diana Walls
Lowell, US
★★★★★ 5
WHERE HAVE YOU BEEN 😊
Color: Grey, Size: 34" - 3 Panel
I purchased RANTILA 3 Panel Room Divider, 6 Ft Tall Folding Privacy Screen Freestanding Room Partition Wall Dividers, 102''W x 20''D x 71''H, Grey. For outdoor use on my patio is perfect . PRIVACY!!! YAY! It was packaged very carefully. There were no missing parts. Instructions were there but I still had to use the video visually. A few screws would not screw in. So I used a hammer with a few good taps that helped using the screw driver. 😊 It was easy putting it together following the directions. Everything is well made. Love the height, functionality and it’s definitely light it works. Thank you
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Reviewed in the United States on June 7, 2025
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Ellen W.
San Leandro, US
★★★★★ 5
I am happy with the room divider. It does what I intended.
Color: Beige, Size: 34" - 3 Panel
Use a power screwdriver.
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Reviewed in the United States on April 25, 2026

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