I'm thinking about embarking upon a San Diego - San Francisco (and back?) solo trip next week. I don't have a touring bike so I'd be riding my beloved Cinelli SC which is not equipped with rack braze-ons. I've done 80-mile rides with my messenger bag crammed with junk before and, well, it's possible but rather uncomfortable. Any suggestions on alternative means of hauling gear? I'm just considering a small, comfortable internal frame pack (I travel super-light). Are there racks made for racing frames?