I am switching my cateye from one bike to another. Both tires are 700 but the new bike has wider tires. Can I leave the cateye setup the same for the new bike even the tires are wider. I know the circumference is what is used to set them up but I was just wondering.
Right, it's all about circumference. So compare the two wheels: Walk Bike 1 down a straight line for, say, twenty wheel revolutions (use the valve stem to keep track of revolutions). Do that maybe three times and average the results. Now do the same for Bike 2. Is there a significant difference? If not, you're all set.