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Message: [QUOTE="John Curea, post: 85428, member: 17497"] This is a great topic for discussion, one of my favorite....... Midvalve float is "speed related" , in other words, the more "float" ( the distance the midvale compression shim stack moves before it starts to deflect) a midvalve has the faster the fork must move before it is effective. In the same respect, the less float a midvalve has, it will start to be effective at a slower shaft speed. Also, cartridge size must be taken into consideration, a larger cartridge , as on a late model Yamaha KYB which is 32mm has much more "swept volume" than on a late model Kawasaki KYB that has a 28mm cartridge. We can compare these two because they have the same piston rod size. The midvalves in these forks are set up night and day different, the Yamaha has about 1.5mm float versus the KX which only has about .1mm float(actually it is more of a bleed, because there is a 13mm dia. x .1mm thick shim under the sealing shim). But they work very similar beacause of the different cartridge size, if you put a KX style midvalve(.1mm float) in a YZ fork, it would be very harsh. In the same respect, if you installed a YZ style midvalve (large float) in a KX fork, it would almost act as if you have merely a check plate. JTT, You noticed a better "feel" when you closed up the midvalve float, I would have to say that was because the midvalve started "working" at a slower shaft speed and didnt put all the load on the base valve. About removing the midvalve compression shim stack and installing a check plate..........that would be like if you had a problem figuring out your new computer (900 mhz and 40 gig hard drive), to just go ahead and rip that modern technology out and install the OLD tried and proven 33mhz and a 5 1/4 floppy just because you understand how that works.....:eek: Yes , you can install a midvalve shim stack in place of a check plate.......we do it on the DRZs' Showas with excellent results......... Well, once Jeremy checks in, he'll elaborate a good bit more I'm sure, he gets a little "worked up" about the midvalve removal thing!! Take Care, Vet [/QUOTE]

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