Hey I was reading some news about natural horse feet lately and was wondering what they do for race track shoes now?

I know they used to use a "racing plate" that was made especially for the track, but I haven't read anything since an older friend showed me one a long time ago. I think it was made by Victory?

I am sure they have some high tech stuff now.

And what is the make up of a track? how much sand? dirt? it has to be a pretty scientific mixture with those dollars out on the track.