Bike Computer Wheel Diameter
I have a bike computer and I'm having trouble setting up the correct wheel diameter for an accurate mph speed. My wheel is 700C with a 38mm tire. On the bike computer there is no 700C setting, only 6-34.
I'm trying to decide if a 700C wheel is closer in size to a 27 or 28. I'm thinking 27 but I have read that a 700C 32mm or wider is bigger than 27 and so has to be 28.
What do you think?