PC Rear Spring (Progression type. Medium. 2 pieces)

JAN code:
Item code:
Maker price:
\842 JPY
Sale price:
\850 JPY
Damper & Spring
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. (Please refer the following explanation for details)

Length (natural length): 32mm
Number of turns: 9.5
Shrink tube color ID : Black

Introduction of 2WAY structure
Contact lines UP
By raising the center of gravity of the spring. the droop of the suspension is induced and the kicking out feeling is stronger.
Contact lines Down
By lowering the center of gravity of the spring. excessive suspension movement is suppressed and stability is increased on low grip surfaces.

Heat shrink tube for identification
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)