Go to Brocks website they have spring kits, clutch mods and cushion kits. Just google Brocks Zx10r clutch.
It is my understanding that the clutch mod heavier springs and cushion kit work together to allow the clutch to grab better so it doesn't wear as fast on the hard launches. The clutch mod takes out the slipper clutch and allows you to add the stiffer springs. The springs push harder so you will feel it in the lever but they also push harder on the clutch too. I have no clue how the cushion kit works but I guess it extends the life of the clutch and helps it hook up better so you get better launches 60' mph and et's.
Last edited by cooter; 12-16-2013 at 07:28 AM.