I have done a handful of road rides on my 29er and 26 inch bikes as the weather has warmed up a bit but I am ready for a nice long road ride wit the surly. Last night I mounted the Kenda 700x42c tires and there is still room for more. I had 700x23's on all winter as I used it on my rollers. Lot of fun but nothing beats getting away from the house. That's really why we ride, right?