Yeah, good luck with sucking your SO into the madness. I've tried and tried with mine, but the most I've been able to get him to do is about 10-12-mile rides, in cotton tank, running shorts, and sneakers. ("Well, of course you're uncomfortable in that get-up!") He finally gave up his crummy discount-store bike and got a somewhat better ride in a trade--he wasn't willing to actually buy a new bike. He seems more comfortable now, but the bike still spends more time collecting dust than running the roads.

Lately, he's started to accumulate a little gut that he's not very happy with, so my next strategy is to persuade him that cycling is the way to get rid of it. Keep your fingers crossed!