I only know of one brand but man are they the bomb. The companies name is fiber lite (or light). They are carbon fiber double horeshoes that only require you loosen the front end screws to slide them in. I bought two sets from a guy at my track who put in a group buy for some of us at my LHS. I think he ordered so many of them because the shipping from england made them expensive to get here in the states. Sorry I can't tell you more about how to get them, as I too am new 1/12. GL.