Like this deal

That thar is a Redneck Tire Saver. I'm one of those morons that runs the 120 and wider tires, and after a 1/4 season, the knobs on the chain side start to take a beating. Switching to an X-ring chain helped, but they still seem to get the corners a touch. This deal cured the rest of the problem.
A simple piece of flat stock, 1/8"x2"x7", couple holes drilled in it to lighten it up(weighs 6 OUNCES!). I then took some teflon, drilled 2 clearance holes in the center about 2.5 inches apart, counterbored em(hey, you could use flathead screws and a countersink), and transfered the holes to the plate. Those holes were tapped for 10-24 capscrews. This gadget mounts on the chain block, so I half ass located the bolt centers from the block onto the plate, drilled for clearance, picked up a couple of M6x60mm stainless bolts from the local hardware, and mounted it. The teflon is hardly worn after 2 seasons.
I also built myself a set of CR500 specific seal drivers. I hate leanin over and tryin to tap with a hammer, keep the driver set straight and my balance, then get the scale out and make sure I got it to the right depth. I always heard they should be driven no further than 2mm below flush, so these gadgets I put together take all the guess work and "I hope its straight, even though I'm drunk" worry out of it. I took some aluminum round stock, about 4.5" long, chucked it up in the lathe and drilled about halfway thru. I than cut it to final ID with a boring bar. I finished the IDs about .005 over the size of the various shafts, wellah, instant location. I then faced off the fronts, and turned the OD down on the ends to about .010 under the size of the various seals, and brought that back 2mm, instant stop.
Y'all seen my pivot bolt tool, with mixed reviews, but it worked.
Shit that I'm working on and cookin up?
A certain bro of mine outfitted his KX500 with a dual piston rear caliper. Some deal where he used a caliper from an 80's street bike, built a mount and says its the shit. I'm gonna tinker with that over the winter for one of mine, if it is the shit, both.
Billet engine cases, but thats gonna be a toughy. Thats gonna be an interesting program to write, mostly getting the time to sit down and sort it all out.
Off set triple clamps. just need to come across some suitable stock, and enough of it.
They don't make those killer steel inserted clutch baskets any more, at least not that I've been able to find for the 500. Wonder how hard that would be.
I dunno, guess I think too much
I must be a sick man