RPM R/C Products - Front A-Arms for ARRMA Big Rock, Senton and Granite 4x4's Upgrade Parts Electric Motor Wires You might not be able

You might not be able to get quite that much power in your own 1/10th scale version

Optimized air cooling

Not recommended for Nitro MT off-road trucks due to the taller gear ratio

Slim profile gull wing design mantain the stock shock position

RPM R/C Products - Front A-Arms for ARRMA Big Rock, Senton and Granite 4x4's Upgrade Parts Electric Motor Wires You might not be ableRPM A arms for the 4x4 3S BLX versions of the Granite, Senton & Big Rock are the answer to the questions you didn't know you had. Are you looking for more adjustability? Check! How about better durability? Got that covered too. How about lightweight? Yup, no problem! Adjustability: RPM has added a second shock mount to both front and rear A arms to the outside of the stock shock mount, adding adjustability and improving trackability. RPM's outer shock