Arrma Granite Grom MEGA 4WD 380 Brushed 1/18 Monster Truck RTR (Blue) w/SLT2 2.4GHz Radio, Battery & Charger
About this part
Small Package, Massive Adventure: GRANITE GROM!
The GRANITE GROM 4X4 Monster Truck upholds the same rigorous engineering standards as its larger ARRMA RC counterparts. Additionally, it features a clipless body mount design that ensures the body remains securely attached while remaining effortlessly removable for drivers of all ages. In the realm of small-scale RC basher models, it stands out as a leader, offering a unique blend of convenience, power, strength, and exceptional handling capabilities that enable you to take your stunts to the next level.
About the Granite Grom
Clip-Free Body
This monster truck body uses a clip-free snap-on system that makes installation quick, easy, and secure—no small parts to fumble with, making it ideal for users of all ages. It detaches just as easily with a press-and-release mechanism for hassle-free access to the chassis. Each body comes factory-painted in one of three eye-catching, durable color schemes, paired with dBoots® FORTRESS™ wheels and tires for rugged looks and confident all-terrain traction.
Electronics
The ARRMA GRANITE GROM comes equipped with a Spektrum Smart 2S LiPo battery and IC2 connectors, delivering dependable power and long run times. Recharging is quick and safe with the included Spektrum Smart G2 S10 USB-C Charger—just plug it in and charging starts automatically. The compact Spektrum SLT2 2-channel transmitter is ideal for drivers of all ages, featuring built-in speed limiting options (50% or 75%) to help new users build confidence.
Metal Gears
Built for worry-free bashing, the ARRMA GRANITE GROM is ready to handle the elements and rough terrain alike. Its robust transmission features all-metal gears for long-lasting durability, while the factory-installed Spektrum SX110 waterproof steering servo also includes metal gears to deliver reliable performance in any condition.
Features:
- Awesome monster truck styling with three rad color options
- fast and easy body attachment and removal mounts
- High strength metal gear drivetrain
- Fully enclosed drivetrain for tertian versatility
- High strength composite chassis
- Ballistic 4WD drive train
- Powerful 2S LiPo fun
- Waterproof 25Amp Spektrum SLT 2-in1 ESC and receiver
- Waterproof Spektrum SX110 metal geared servo
- Spektrum SLT 2-channel 2.4GHz radio
Includes:
- (1) 1/18 Arrma Granite Grom
- (1) 7.4V 1400mAh 2S LiPo Battery with IC2 connector
- (1) Spektrum S10 Smart G2 Mini 2S USB-C Charger
Needed To Complete:
- (1) USB power adapter with QC 2.0/3.0 18W+
Specifications:
| Scale | 1/18 |
|---|---|
| Length | 9.84in (249.9mm) |
| Width | 7.87in (199.8mm) |
| Height | 4.65in (118.1mm) |
| Wheelbase | 6.5in (165.1mm) |
| Weight | 28.2oz (800g) |
| Drive | 4WD |
| Power Source | Electric |
| Assembly Level | RTR |
*Tech Note: Ready-to-Run models come equipped with all electronics and include the transmitter needed for use. Please check the "Needed To Complete" above to make sure you have everything you need to get out and enjoy your RC model.
Manuals:
Manual Coming Soon
CA Residents Prop 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...Reviews4.0 · 6 reviews
Impressived lil rc Its currently my fav. Rc I like it so much I have given away 5 of this Rc to less fortunate kids And also collecting all colors Of the granite grom And typhon grom I just wish they would also Come out with a green one
This is my first Arrma vehicle. I've been impressed by this one and now I'm thinking about getting a Mojave Grom. This is also my first Monster Truck vehicle. I've owned many other types of vehicles(Too many to list here). For comparison, I'll compare it to my daughter's Latrax Teton. Stock for stock the grom handles off road much better than the Teton. The Teton bounces around a lot, but he grom seems to stay planted. Speed wise, the Teton seems faster on road, but the Granite Grom is faster offroad. Durability wise they both are g great, until you go brushless. My Grom hasn't stayed stock for long. I've gotten the sealed diffs, upgraded axles, aluminum shocks, and have dropped in a 2840 4500KV LC racing brushless motor and Hobbywing Esc in it. After the brushless upgrade, I want to drive this thing all the time. The motor is almost too much for this small chassis, but the metal drive line makes it a bullet. I wish there were a BLX version of the Granite Grom. I give this vehicle 4 stars for the stock set up. I can see where the weakness are in the stock form. The drive cups are plastic. The diffs are plastic. The brushed motor is surprisingly potent. The Stock servo is plenty fast, though I'm not sure how durable. The steering rack has a bunch of play in it so it's hard to keep it straight. Once you work out the weaknesses and go brushless, you will be amazed at the performance of the vehicle.
I have 2 of these Arrma Granite Grom and I also ordered the Arrma Typhon Grom. I originally bought one for my son and was pretty blown away by the quality for the price. So I bought another! This thing comes with EVERYTHING you need. All you have to supply is a little charging brick. Everyone has one fo their phone. The charger can also be used in the car. Had a USB C plug with a regular USB adapter in the box. Comes with -The Car -Nice Radio -2s Lipo -Charger -Tool Kit -Manual and everything you need. I get about 20+ minutes of full throttle bashing around. On 50% for my 3 Y/O it seems like it goes forever. The parts are super cheap, very easy to work on and uses 1.5mm & 2mm hex wrenches. No philips screws to mess up! This is a PERFECT RC for beginners and advanced people. These things are so much fun. Can take it anywhere. It's the perfect size. I always have mine. One thing I would definitely recommend is to get the metal diffs. They are about 40 bucks. They are metal all around the Ring & Pinion Gears are. But, the Front & rear internal gears are plastic. They are known to break with harder use. I've upgraded mine with a bunch of upgrades, including a Hobbywing brushless system and I'm having a blast. I have as much fun with this as I do my Kraton 6s EXB! Arrma always knocks it out of the park and I've become a huge Arrma fan. I only buy Arrma now. Buy from AMain. You get super fast shipping and tip notch customer service. Highly, highly recommend 5 ?????
Super fun platform and overall durable with big exception, the differentials. The marketing and box tout metal gears but the differential still has plastic gears inside. The upgraded diffs are super durable but cost about another $50. Making the price point of this rig not as attractive once you buy it. Also Spektrum just needs to stop it with the smart battery crap. Especially IC2.
Fun little truck for the money and what comes in the box great deal. As always Amain is awesome to deal with super fast shipping.
Reviewers generally find this 1/18 Granite Grom (Blue RTR) fun and good value for the money, praising the included radio, battery, charger and tool kit, its runtime, and its off-road handling compared with a similar Latrax model. Several note that the differentials use plastic gears despite marketing that mentions metal gears, and that upgraded diffs add roughly $50. Two verified owners report durability problems: one unit stopped working after four batteries, and another reported torn-up differentials after six. Ratings range from 2 to 5 stars. The reviews cover the blue variant only.
- + Fun, capable off-road handling
- + Complete package with radio, battery and charger
- + Good value for the price
- + Long runtime and easy to work on
- − Plastic differential gears despite metal gear claims
- − Upgraded differentials add about $50
- − Reported electronics failure after few batteries
- − Reported differential damage with heavy use