This is the Traxxas Revo 3.3 Adjustable Rear Suspension Arm Set. This allows you to lengthen the wheelbase by 10mm or 19mm depending on conditions and driver preference.
OverviewAdds an additional 10mm or 19mm of wheelbase extension to Revo in just minutes! Traxxas makes it easy by building the adjustment into the rear arms. Installation is a snap and the wheelbase can be quickly tuned trackside for any conditions. Select either 10mm or 19mm of extension by simply repositioning the pivot ball locations.
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