Turning the Arrma Granite Grom Into a 50 MPH Beast: Here’s How!
The Arrma Granite Grom starts as a plucky 1/18-scale monster truck, but with some serious upgrades—like the Furitek Scorpion brushless motor, Powerhobby PH60 servo, Arrma aluminum shocks, metal diffs, and a steel universal kit—it’s morphed into a tiny titan that...