Hi, I'm new to cycling and I bought a 2011 specialized sirrus sport and all summer haven't left pavement once and realize now I likely won't be any time soon. So, I wanted to get a more narrow tire than the stock 700x32 but I can't seem to find any info on my rims via google. They're Alex AS-14 and I was reading sheldon brown's recommendations for tire size so need to find out my inner rim width. I was hoping someone might know how to get this info or have recommendations as to what size tire I can safely use? Thanks.