Thanks Scrod - funny, I was just reading up on aluminum lockrings a few days back. I wonder if Phil Wood cogs/lockring will work with my setup. They look purty. Otherwise, according to AC's website, Campagnolo bits would work on them.
@MCosby - at the time of my initial thoughts I just rode in my regular street clothes. I did ride it again today with padded bibs and it's much more comfortable. But I'll still keep an eye out for a different seat.
@Chas - you race Spec Miata? I did a tidbit a few years back and then jumped to formula mazda before going back to karts. Nice setup there.