So as promised, I'm posting a couple pics. This first one is a Race Lite wheel with a 27 tooth large gear on the cassette. I haven't purchased yet, but I found a Tiagra 30 tooth cassette on Amazon. Should fit, no?
I don't really think this pic will help much but someone above asked if I had any pics of me on the bike. This is the only one I got from Santa Barbara. Don't really know if it will provide any usable information. Unfortunately, they didn't get any of me passing directly by.