I have a 98 zx6r and i just did the suspension on it.I got 8.5 race tech springs and gold valve and did the work myself(IT WORKED GREAT)I bought a penske twin clicker shock off of Rob Lee and modified it to work on my bike,his was for a 97 so i tinkered with it to work on my 98.got to say I saved ALOT of money!!!!! Now my bike handles like it should.I set it all up and WOW im inpressed !!!!!!I wouldnt have a bike W/O redoing the suspension this way.Dont mess with trying to revalve you rear shock,in the end its still a stock shock.If you can do the work yourself,you'll learn alot and save alot of money.Ive been thinking about building a superbike motor.I need to find a 02 and build it.