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The self-righting Pro Boat Jet Jam is one of the coolest boats on the market
which gave it
this 12 inch rocket is a true classic that should be in every collection
With zero shock mount adjustability on stock lower A-arms
Rear A-Arms for ARRMA Big Rock Senton and Granite 4x4's The self-righting Pro Boat JetRPM 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
