It doesn't matter if you're headed out for a 30-minute jaunt or a 100-mile excursion—safety and repair accessories are indispensable. Beyond a protective helmet, consider bringing a multi-tool for on-the-go adjustments, a tire repair kit (pump, extra tubes, and tire levers), and a bell to warn other cyclists and pedestrians. If you plan on riding for a while, don't forget to bring a water bottle, snacks, and your cell phone. And it's never a bad idea to carry a few first aid essentials such as Band-Aids, antibiotic cream, and pain relievers.