Green spring for JR Primary clutch. Engagement at 42 lbs and Full Shift at 112 lbs.
This JR Primary clutch spring has been Cryogenically treated. Racing is a very competitive sport so every little thing counts. Cryogenically treated primary springs have more durability to keep them from breaking. It also allows the spring to hold its pressure longer without sagging out which causes poor clutch performance.
It can be identified by a silver stripe on the green paint vs the non-cryo treated green spring.
CRYOGENICS = CONSISTANT CLUTCHING
