Rear A-Arms for ARRMA Big Rock Senton and Granite 4x4's this 12 inch rocket is

this 12 inch rocket is a true classic that should be in every collection

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nitro and electric versions of the Stampede 2wd and Rustler

Rear A-Arms for ARRMA Big Rock Senton and Granite 4x4's this 12 inch rocket isRPM 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