I picked up some cast iron rotors, though the carriers are pretty worn. I ended up re-shimming them just to get me by. I got the shims and clips from Amazon Supply (they bought out Small Parts Inc). It took a little time to find what I needed so I thought I would share the info.

The shims come in different thickness and two types of stainless 18-8 and 316. The difference being 316 has better corrosion properties but the hardness is nearly identical. Oh the size is 14mm id 20mm od. And then choose your thickness. oem is 0.5mm

18-8 shims link: http://www.amazonsupply.com/stainles...&ajaxHash=true

316 shims link: http://www.amazonsupply.com/stainles...&ajaxHash=true

The clips, retainers, e-type clips, whatever you want to call them are here: http://www.amazonsupply.com/dp/B0062...sp_dp_g2c_asin

Robert

ps. yes there are button kits out there that contain shims and clips (though not an assortment of thickness) but you would rarely if ever have to replace the buttons as they are extremely hard.

pss. I decided to weigh the standard rotors vs the cast iron rotors. The cast iron rotors are 1/2 pound lighter each, so you save 1lb of unsprung weight. Standard 1895g, iron 1674g. ea.