No.....I'm looking for stiffer! My Hayabusa has a 240 kit with a 8" over swingarm. I have adjusted the factory shock and spring much as possible. I want to be able to ride a passenger and spray NOS without bottoming out.
There is absolutley no need to be spraying while riding with a passenger.
Its one thing to play with our own lives but don't use it for parlor tricks.
You can scare the hell out of most passengers on engine only...
With that said any of those links above you can buy a heavier weight spring just call one of them up or Street and Track and let them know length your weight and your combined total weight to get in the right area..