I just picked up a sportour today for $50.00. It is pretty dusty/dirty but overall in pretty good shape. I am thinking of switching rims to 700's. My question is, should I? It has matrix titan 36 spoke 27's on it now. I am thinking of switching to 32 spoke Wobbler GTX with shimano 105 700's. I am a big guy about 6'4" 250. Should I stick with the 27's for strength purposes. I like the idea of running smaller rims with bigger tires. Also the S/N starts T17007, any idea what year this is. I will post some better pictures tomorrow. Thanks