Formula Vee Third Spring System

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5196469 orig

Tri shock rear suspension

Third spring systems offer a steeply rising rate in ride, without an attendant rising rate in roll.

A monoshock suspension generally has a single rocker, with a single coilover, actuated by pushrods from both right and left wheels. The coilover acts only in ride, much like a third spring. Roll is usually accommodated by having a laterally sliding shuttle in the rocker. The pushrods anchor to the shuttle bar.

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  1. Hi, is there any more information about the tri shock design. I have a formula vee and would like to try this system. Is there a way to work out coilover and spring rates necessary. Any help would be appreciated.
    Peter