Avoid the long walk home, or waiting for help.
This handy pocket-sized field repair manual is worth it's weight in gold. This 24-page, waterproof, tearproof Field Repair Guide contains color photos and step-by-step instructions addressing the most common repairs that might be needed on a ride.
Expert instructions are provided for the following repairs:
Flat tire
Wobbly wheel
Broken chain
Broken derailleur
Shifting problems
Torn tire
Pedal/shoe problems
Loose handlebars
Loose or broken pedal
Brake issues
At only .99, this is a wise investment and an empowering resource.