Congratulations! You've fixed a flat! You're now back on your bike, which makes you the more efficient than any animal on earth. If it weren't for you...
Step 3: Feel for Nails
Whatever punctured your innertube might still be impaled in your tire. If you don't find and remove it, you'll get another flat right away. Look and feel inside the tire to see if there's something poking through. It's usually a nail, thorn, or shard of glass. Don't cut yourself.
Bio:Tim Anderson is the author of the "Heirloom Technology" column in Make Magazine. He is co-founder of www.zcorp.com, manufacturers of "3D Printer" output devices. His detailed drawings of traditional ...read more »