Front A-arms for the ARRMA Big Rock, Senton & Granite 4x4s 4ws installation is easier

installation is easier

Rear Wing Hardware

5" (622mm)

The TRX4 platform is a legend

racer selected electronics

Front A-arms for the ARRMA Big Rock, Senton & Granite 4x4s 4ws installation is easierRPM 81492 Front A arms for the ARRMA Big Rock, Senton & Granite 4x4s RPM A arms for the 4x4 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: We've added a second shock mount to both our front and rear A arms to the outside of the stock shock mount,