travis ,the hub and caliper hanger that hold a rear gsxr or suzuki model brake plus the disc carrier that holds a rz 350 or fz600 10.5 inch .other models also.I bought from a flat track guru that just happined to also be a machinest.the hub is a three piece kennedy/barnes,knock off. guy is real good. made it himself on lathe.he had an add on ebay a few years back for the hub.I called him ,told him what I has aiming to do and he ,said o.k. I can also make a caliper hanger ,disc hanger and spacers for the hub to space sprocket and disc to correct width.he also provided the disc and caliper.spin off nuts and made the knock off wrench. also made me the front wheel disc spacers to hold fzr 600 discs. I now have wave rotors on front ,will have one for the back soon.all this came to a little over 250.00. not bad at all. I have not seen an add on ebay from him in a long time.I think I still have his phone number in my e mail. he was pretty old so not sure if he just got tired of ebay work. spokes are buchanan . rim is d.i.d from some dirt bike . ebay find. that was a bitch to lace up.front rim is acell,easy as pie to lace up. I had to make wheel spacers. in the end though rear wheel set up ended up running me up to 400.00 or so. after all that learning though I can build a better wheel than this easily with parts from on line flat track parts dealers.