Reveno Clutch Tuning Springs

These are the Reveno pillow tuning springs. We use the clutch rollers to engage the clutch at a certain RPM and these will define how aggressive the clutch grabs. For instance, if you have 1000K pillow springs, the clutch will engage very hard, all at once. If you have 7300K pillow springs the clutch Will engage very slowly, dragging the clutch and then finally engaging as the rpm’s climb.