No, I'm not talking about the national obesity epidemic, I'm talking about the Surly frame geometry. When I bought my Pacer frame (currently for sale), I read about the ability to fit large tires and/or fenders on the road frame (ie Fatties Fit Fine). That was pretty cool I thought, particularly because it didn't negatively affect the bike in any other way. I wondered - why don't all non racing frames come like this? (The answer is probably industry laziness) I didn't really test it though, using tires no wider than 25's on that bike. However, I did meet one guy who was testing the limits. He had a Surly 1x1 (which is a 26" frame) fitted with 29" wheels and cyclocross tires. Plenty of room left over for a thick creamy layer of mud. He raced it too. Do the guys at Surly know about this versatility?