






🚀 Small Scale, Big Bash: Unleash Monster Truck Madness Anywhere!
The ARRMA Granite GROM MEGA 1/18 scale 4X4 Monster Truck delivers high-performance RC bashing in a compact, ready-to-run package. Featuring a powerful 380 brushed motor, Spektrum 2S LiPo battery with smart charger, and rugged all-terrain design including oil-filled shocks and waterproof electronics, it’s engineered for durability and speed. Perfect for both beginners and seasoned RC enthusiasts, this truck offers quick body swaps and pro-grade hardware, making it the ultimate portable monster truck experience.
| ASIN | B0CPN1762Q |
| Additional Features | Portable |
| Age Range Description | 14+ |
| Are Batteries Required | Yes |
| Batteries are Included | Yes |
| Battery Description | Lithium-Ion Polymer |
| Best Sellers Rank | #68,965 in Toys & Games ( See Top 100 in Toys & Games ) #136 in Hobby RC Trucks |
| Brand Name | ARRMA |
| Color | Blue |
| Customer Reviews | 4.3 out of 5 stars 259 Reviews |
| Included Components | (1) ARRMA MEGA 380 28T Brushed Motor, (1) GRANITE™ GROM 4X4 Monster Truck RTR, (1) Spektrum SX110 Waterproof Metal-Geared Servo, (1) Spektrum™ Waterproof SLT™ 2-in-1 25A ESC & Receiver, Remote |
| Indoor Outdoor Usage | Outdoor |
| Is Assembly Required | Yes |
| Item Dimensions | 12 x 9.9 x 7.9 inches |
| Item Type Name | RC Truck |
| Item Weight | 1.8 Pounds |
| Manufacturer | ARRMA |
| Manufacturer Maximum Age (MONTHS) | 1500.0 |
| Manufacturer Minimum Age (MONTHS) | 168.0 |
| Manufacturer Part Number | ARA2102T1 |
| Material Type | Metal, Plastic |
| Maximum Speed | 30 Miles per Hour |
| Model Name | ARRMA RC Truck 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR |
| Model Number | ARA2102T1 |
| Model Year | 2023 |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Number of Items | 1 |
| Number of Players | 1 |
| Operation Mode | Automatic |
| Power Source | Battery Powered |
| Scale | 1:18 Scale |
| Size | 12 inches x 9 inches x 7.9 inches |
| Theme | Truck |
| Toy Vehicle Form | Truck |
| Unit Count | 1.0 Count |
S**E
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.
A**Y
Fast car!
Car goes fast. Seems like good quality. So far it seems to be good quality. Easy to control
J**A
Very Powerful and Fun to Drive
Very powerful and fun to drive. It feels like a real monster truck in a smaller scale. The performance is great and I’m very satisfied overall. The only downside is that it does not include a charger. Other than that, I’m happy with it.
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.
S**V
It's good in stock form
It's fun in stock form, perfect for beginners. But if you go brushless, there's a ton of torque-steer. A gyro is a must. Unless you like to do heavy modifications, leave it in stock form or spend the outrageous price for the spektrum blx esc that comes in the Typhon or Mojave blx versions. I actually regret this buying one. But again, it's perfect for a beginner, just not so much if you buy it planning on going brushless without buying the crazily priced blx system.
H**A
Fun RC Car!
I got this on sale for $108. This has been one of my better buys. I like this rc car. I got the V2. Downside being the plastic on one of the front outside axels failed and the axel popped out and disappeared somwhere. Waiting on the replacement metal parts now from Arrma ARA-311198($40 bucks). Upgrades add up quick!
J**D
Fun until it wasn’t
Was fun for 10 minutes until the part connecting the steering to the servo broke and now cannot steer. Literally broke 10 minutes into first use out of the box. An obviously common flaw given the market to replace it with aluminum instead of the factory plastic material. Once it’s upgraded we’ll see what downstream needs to be replaced…. If you don’t mind replacing/upgrading parts along the way, then yeah…buy it.
K**Y
Fun car for my 13 y/o! Great Christmas gift.
Got this for my 13 y/o son for Christmas and he loves it. It’s a great RC car for a kid who is transitioning from little kid toys to more adult stuff. At the price point this was the perfect transition car for him. Easy to drive, super fast, durable, decent battery life. The one thing I’ll say is it takes some practice and fiddling to get the body on and off. I don’t love the design. It’s supposed to be super easy and idiotic proof but both my son and I (and my husband) struggle with it.
C**Y
Small electric remote toy car.
Used this instead of petrol toy car, and it is awesome, built great, waterproof, 2 batteries, and sturdy, remote control is great too.
D**O
Battery does not work from the first charge.
Battery does not work from the first charge.
T**M
Fun little grom
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
J**.
La mejor opcion!
Increíble RC, es muy resistente, rápido y fácil de calibrar. Muy recomendable si eres principiante o veterano!
2**N
Super
Wird regelmäßig schonungslos von meinem 5 Jährigen Sohn misshandelt 😅 Wasser, riesige Sprünge alles kein Problem. Das Ding hält! Super dass man die Geschwindigkeit drosseln kann, so kann der Zwerg sich in Ruhe damit vertraut machen
Trustpilot
5 days ago
2 weeks ago