Re: lowering 2001 gsxr 1000 forks
Assuming you are doing this for drag racing, and have some thin steel cable, it's $0.
Disassemble forks. See service manual. A floor jack and a plate with a hole in it clamped to something solid works as a spring compressor. Mine has two bolts threaded in the side to go in the holes in the internal spacers.
Cut white spacers desired drop. I did 2.5, iirc.
Reassemble forks. You may not need the compressor depending on the cut.
Add oil and carefully work out bubbles. Use a thicker oil than stock. The whole thing rattles a bit at full extension now, so this takes a while. Do not lay forks down, this prolongs the procedure.
While waiting for bubbles to rise, cut head off a bolt that screws into the caliper mount you are not using so that 1.5 nuts work of thread is showing. Drill hole 3 times the size of the steel cable just next to the caliper mount in the middle of the bolt. This is not always easy. Loop cable around lower triple and pass both ends through hole in stud.
Tighten nut with washer to hold the cable after final assembly to set suspension travel limit.
At least that's how I did it. Cable just broke after 3 seasons and 10 or more disassemblies. Will be replacing it every 2 seasons now.
And yes, that is where I run the forks and the clipons. If you are getting low, get low.
K3 1000 Naked drag bike, stock internals - 8.74 when it's cold and I'm skinny
'93 Yamaha SecaII - Ground-up cafe racer project
'03 Honda Metropolitan - Pulls the drag bike and then gets 100 mpg around town
'74 Honda CT70 - Big bore kit + bad Chinese front end = Death Trap