I have a 72 mile bike ride coming up this Saturday and I was wondering how I should dress. First of all this will be my longest ride. Before this one, my max distance was 54 miles. This saturday, the weather is supposed to be in the 60's with a 40% chance of rain. Now normally I wear bib shorts and an under armor wicking shirt, but that has been during this past summer. I really don't want to over dress, because I don't have anywhere to put my layers when I get too warm. Any suggestions would be great.