Cryogenically Treated JR OVERDRIVE Primary Purple Spring

JR primary spring for Shock Wave Overdrive Clutch that 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. 

Each spring is measured at a set length and poundage is recorded on the spring. 

CRYOGENICS = CONSISTANT CLUTCHING