OK, since many of us here are proudly riding little peewee IF bikes, who's got the smallest? My serial number starts with 37, though when I measure the seat tube it looks like 38. Effective top tube is 47.

KayTee, I totally envy your S&S couplers. That's the one thing that I wish came with my bike. I know it can be retrofitted, but it pains me to think about ever cutting up my bike. Instead, I think I'm going to be on the lookout for something like an older Terry steel bike, to do the S&S thing someday.