Wheel size and bike computer

[MomOnBike]

We use the roll-out method, and accept that the figure is always going to be slightly off. DH's computer always seems to read faster/farther than mine does, but {shrug} maybe that just means he weaves alot.

An alternative to driving a route with your car is to use highway mile markers - if they are on a route you do. Again, one mile probably tell you much, but over 2-3 or so miles, you'll get an idea of the accuracy of your number.

[stacie]

try mapmyrun.com You can even calculate zigzagging across the street if you'd like. I've always just done as LisaSH says and trusted it was close enough. s

[li10up]

Now I know how to increase the speed and distance of my rides without all that pesky training! Just reset my wheel circumference!!!