What I found is that the fit with the rubber grommets and mounting system on the oem risers is superior to aftermarket ones. I've tried many different aftermarket risers and am ready to go back to oem. Also, it doesn't seem like much, but 1" makes a big difference for as far as comfort. At 1" lower the handling doesn't improve enough to outweigh the comfort factor. Not trying to crap on your idea. Just sharing my experience. Whatever you do, I hope your mods add to your enjoyment of the FZ. It's a great bike.