well depending on the roads you travel would depend slightly on the profile..if you have really rough roads then a 45 series would be good. as w/ rough roads and pot holes etc and the lower profile the chance of bending and messing up a rim are good.
if road conditions are good then go w/ a 35-40 series for a nice low rubberband look.....I hope this might help but I'm sure you will receive further info...
