If I didn't have n+1 I wouldn't have been able to ride today. I own a Trek 8.4 DS which I use for light trails (with an extra set of wheel with wide tires). If I'm out for a leisurely ride on MUPs I use it with the 700 x 38 tires that came with it. I put it in the shop last Friday for some tune-up work amongst other things. Today I rode my Felt Z85 and was able to ride more miles before it got too hot.