I'm a former runner and current Cat 3 cyclist doing my first ever duathlon on Sunday. I think I should be competitive but my only piece of triathlon specific gear is some shorts that are slightly too small; I was going to wear them with a cycling jersey for the duathlon but I tried cycling on the TT bike with them last night and it wasn't very fun. I have a couple of cycling skinsuits and some tight running shorts that I am now considering...anybody ever run two 5k's in a cycling skinsuit? I've done long rides on the TT bike before and was comfortable but wore cycling bib shorts or my skinsuit.

Thanks for any response. I might just suck it up and wear the jersey and tri shorts and be uncomfortable for 45 minutes of riding but I'd be faster on the bike in a skinsuit.