I'm doing a 10k run/40k ride/ 5k run dualthon on the weekend and am not really sure what to wear. I only have cycling shorts or running tights, none with in between level of padding. I think I would like some padding on the ride so should I run in my cycle shorts (I just got some witches britches from Ground Effect and they don't seem to have too much of a padded bum) or will I look totally stupid - I'm already sure I'll come last. Does running in cycle shorts cause chaffing or other discomfort? I might wear them on my training run tomorrow to see how they feel.