Re: GSXR1100 1986 Slabbie RWU Fork options for track
Easiest is the 88-89 slingshot front end. the whole lot bolts in, yokes, brakes wheel. Forks work well with a stiffer spring, and factory air gap, some use a slightly thicker oil. use the later 5.5" 90-91 rear wheel, again bolts straight in with matching spacers and brake caliper hanger. This works really well.
Down side is the Slingshot wheels are really heavy. Later GSXR600 srad-K3 forks are good but a little shorter, so hurt ground clearance. Wheels are much lighter, rear needs some machining of the sprocket carrier and spacers to fit though.