Quote Originally Posted by Lisa S.H.
And my dumb computer question is: are there bike mileage-measuring computers that don't need a wire that has to run back to the rear wheel?

I didn't know there were ones with wires. When I looked in the shop they only had wireless ones. Easy to fit and seems pretty accurate. They varied in price depending on what else you want to measure. I wish I'd got one that measures cadence... but I didn't know what cadence was when I bought it.

Mine's fits to the front wheel.