Count me among those who has been gradually moving wider. But tire pressure and flexibility have a lot to do with the quality of the ride, too, if you feel restricted by your bike's tire clearance. I just had my new bike checked by the shop after its initial break-in. When it came back, the ride was terrible, the tires pumped to the max spec of 90 pounds. Pssssssssss, back down to 55/50, and all is much happier. This bike will take 38mm tires, and that's what my next set will be.