

🚀 Small Truck, Massive Thrills — Own the Bashing Revolution!
The ARRMA Granite GROM MEGA 380 is a 1/18 scale 4X4 monster truck featuring a powerful 380 brushed motor, Spektrum 2S LiPo battery with smart charger, and durable all-terrain components. Designed for both beginners and seasoned RC enthusiasts, it offers a compact, ready-to-run experience with high-traction tires, enclosed drivetrain, and advanced suspension for rugged performance. Its clipless body mounts and reliable Spektrum radio system make it easy to customize and control, backed by a 2-year limited warranty.
| ASIN | B0CTJTL1VS |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #35,676 in Toys & Games ( See Top 100 in Toys & Games ) #79 in Hobby RC Trucks |
| Customer Reviews | 4.5 4.5 out of 5 stars (226) |
| Item Weight | 1.8 pounds |
| Item model number | ARA2102T3 |
| Manufacturer | ARRMA |
| Manufacturer recommended age | 14 years and up |
| Product Dimensions | 12 x 9 x 7.9 inches |
| Release date | August 15, 2024 |
K**T
Quality truck
I think for the price point, this is the best value for the money. This truck is well built and pretty fast. It doesn't do the best on crawler terrain or taller grass. This is ok though, it wasn't meant to be a crawler. I have had it for several months and am not nice to it, hasn't broke yet. I also like the clip less body mounts. Definitely don't regret this purchase. The picture I posted is with bigger tires than it came with.
V**N
Lots of fun
Awesome, fast, tough.
D**E
Good little thing for good price
This thing is bad@%%, we love it. Goes fast and easy to work.
J**O
Coolest little Arrma Granite 1/18 scale truck
Received in brand new perfect condition. Very well packaged. I own quite a few buggies now. This is the smallest one of them all. Just unbelievable how well it performs. 2s works really well in theses sawed off jobs. I really enjoy driving this little guy around the house. It’s so small compared to my others and I’m afraid to take is outside. It might get lost or a bird might take it away. Not to mention all the Coyotes running around. But seriously this is a cool little hobby grade truck. I like it! Runs perfect and very happy with my purchase.
N**S
Fun inside and out
I have a few RC trucks, but they're all too large and fast to use inside. This truck fills that gap. This thing is SUPER fun inside, but is fast and tough enough to use outdoors. The unit feels very well built, and looks great, and being ARRMA you know youll have the aftermarket support for hop ups and replacement parts if needed. Battery life is great, easily getting 30 minutes of inside play before I slap the charger into it, and i don't think I've run the battery dry yet. Ill likely get at least one more of these because they're so fun. I really like the ability to limit steering at throttle, definitely well thought out features for a starter truck, that can grow in abilities with the user.
S**E
Just as fun as the big boys
*1st Thing, this must be a version 2, because there are tons of videos talking about it coming stock with plastic dogbones, differentials and all that. Not anymore, everything including the planetary gears in the diffs are metal (planetary gears look to be aluminum though). And also your Arrma logo on the front won't be white, I did that. Anyway, if you know about Arrma, it's Arrma tough, enough said. If you're new to the hobby, get it, you'll love it. It's tough as a tank, quick for it's size, runs smooth and quiet. If you charge the battery with the accompanied charger, get a higher wattage USB-C cord and use a high wattage charge block and you can charge the battery pretty quickly (less than an hour), otherwise plugging it in your laptop or something like that will take forever.
Z**N
Great truck
Fun for teaching my son how to handle an RC. Can take a beating! He is 4 and fell in love with my larger Arrma. This thing zips, jump, and has taken every crash thrown at it. I suggest purchasing a larger battery and charger. The ones it comes with aren't the best but will work fine to start.
J**N
Perfect basement Basher
I purchased several small format trucks for my basement basher course . The 1/20 Amazingone is a lot of fun but breaks constantly on the ramps . The MJX 16208 is a bit big but less breaking . Then there was the Grom 😎. Being brushed it’s fast enough for inside and I haven’t broken it yet . I absolutely love this truck for what it is and it’s an amazing indoor basher !!
C**Y
Used this instead of petrol toy car, and it is awesome, built great, waterproof, 2 batteries, and sturdy, remote control is great too.
M**N
Sehr gutes RC Fahrzeug für ab 6 Jahren! Der Truck macht den Kindern aber auch den Erwachsenen spaß. Man kann an der Fernbedinung die Gesvhwindigkeit 50/75/100% Leistung einstellen. So ist es ideal zum üben. Der Akku lädt schnell. Hier muss man wissen, das das Ladegerät nur mit der richtigen Voltzahl betrieben werden kann. An einem 65watt Netzteil hat es zB nicht geladen und ich war kurz davor es zurückzuschicken. Der Truck geht bei 3,1 Volt Spannung nicht aus, sondern fährt nicht mehr aber lenkt noch. Dies ist zum Akkuschutz von Spektrum so vorgesehen. Auf 50% Leistung hat man 20 Minuten reinen Fahrspaß und Sprünge mit Chrashs selbst auf Asphalt wurde bisher alle unbeschadet überstanden. Nichts für Eltern die sich mit dem Fahrzeug nicht befassen. Ein 6 Jähriger kann die Anleitung noch nicht verstehen. Ich baue jetzt eine RC Rennstrecke im Garten und wir fahren um die Wette. Entspannendes Hobby für Groß und Klein.
D**O
Battery does not work from the first charge.
T**6
Perfecto para iniciar en el rc de saltos , por mucho que le des no se rompe , calidad arrma , si se rompe es por mucha mala suerte , potencia limitada pero se mueve muy bien , amortiguadores espectaculares de gran recorrido , conclusion … calidad precio de lo mejor que se pueda pagar con dinero .
T**M
I love Arrma R.C gotta say one of the best makers in a long time, strong and easy to work on and this little grom granite is a blast, its a little slow with the brushed motor but rc 4 wheel drive makes a crazy brushless conversion that makes this granite almost to fast, big fan of these groms
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