Here's an interesting concept from Continental, the tire company--vending machines for spare inner tubes! A handy solution to the problem of what to do when you need a new tube and the bike shop is closed. Still, it begs the question of what to do if you get a flat miles from the bike shop or vending machine. There's no substitute for being prepared by carrying your own spare tube, a pair of tire levers, and a patch kit, all of which can easily fit in a decent seat bag.
If you're unfamiliar with how to change a flat tire yourself, it's a pretty simple process once you get the hang of it. There's a handy how-to guide on our web site. Try it at home a couple of times, so you don't have to panic when you're out on the road or trail!