The Yokomo RP-081 Racing Performer Ultra is a 3.2 linear coil spring intended for 1/10 on-road touring cars. Its equal-pitch construction yields a balanced response and consistent damper travel throughout the stroke. The spring is finished in black and the hardness level is laser-engraved on the end for easy identification during tuning sessions.
It has been trialled on BD8 setups noted in the product information, providing a reliable fit for those chassis types. This part is an RC aftermarket component for use within touring-car shock assemblies only.
Installation is straightforward: slide the spring onto the shock shaft, position between the retainer and top mount, set preload, and check free travel. Use the RP-081 as a reference linear spring when seeking consistent mid-stroke support without progressive stiffening.
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