i was recently given a little schwinn 13 function wireless computer, so i figured i'd toss it on today and give it a shot. i took a look at the little wheel size chart to see what the wheel factor for my 700x35 set would be. it's not listed, and i'm not sure of the total overall diameter of my wheels/tires (not a single measuring tape in the whole dame house!). does anyone have a quick answer?

Try this site;

http://sheldonbrown.com/cyclecomputers/index.html

Try this site;

http://sheldonbrown.com/cyclecomputers/index.html

Just re-calibrated my computer to 700 x 20 and lost 9 miles...........