I'd misread Delmarva's post.

Thanks for the info on wheels and tires. There is a forum member, Ciufalon, who owns Fuji Touring bikes and who'd also told me these wheels would be good for lugging weight. I don't know how much of a difference they make, but the bike in general handles super well when it's fully loaded with the kid and luggage.

I was wondering because the spokes are pretty rusty. So I was wondering if I'll change them or if I better buy new wheels. But I guess the latter option would mean getting 700c's.