If you have ever wondered how forks get lowered, well, here it is. This is a 1999 Kawasaki ZX6R. Everyone told this guy that it is not possible to lower the forks on these bikes besides just sliding them up in the triple trees.
Not true. Fortunately, I have an extensive background in suspension. It just takes some cutting and shimming. You can see the PVC spacer below the bottoming spring and how the top spring spacer has been cut down. The two of these combined prevents the fork from reaching full extension and keeps the proper preload on the springs, therefore, lowering the forks. It also does not change where the forks bottom out, so you don't have to worry about the fender hitting the lower tree. There you go. Now you know. It's not rocket science, but for some shops if it's not in the catalog, then it can't be done.
By the way, this is a drag bike. Normally, I wouldn't recommend lowering a bike like this quite this much for street use. It tends to result in scraped up headers and potentially pitching the rider in a corner if the bike hits a big bump. Not an issue here.