This is a dual progression rear spring, specialized for road surfaces with comparatively low grip such as P tiles and painted concrete!
We did a lot of research selecting the material, steel quenching temperature and quenching time with many results to compare. Giving us a lineup of three types of rear spring (Medium, Medium Hard, Hard) that can be selected according to the vehicle weight and road surface grip.
With the 2-way structure, the springs can be flipped up and down to instantly adjust to the circuit track conditions.
|By raising the center of gravity of the spring, the droop of the suspension is induced and the kicking out feeling is stronger.
|By lowering the center of gravity of the spring, excessive suspension movement is suppressed and stability is increased on low grip surfaces.
|A heat-shrinkable tube is bundled for easy identification of springs.
Medium: Black, Medium Hard: Yellow, Hard: Red
Cut it to your desired length, attach it to the spring with reference to the image, warm it with a drier in order to fix it (※ Please be careful of burns when using a drier on high heat)
|Number of turns
|Shrink tube color ID