Put Together A Tool Kit For The Road And Trail - If you're packing the right stuff, that little bag under your seat can be a ride saver in the event of mechanical problems. For the most common breakdown, a flat tire, carry a spare tube and tire levers (these make it easy to remove the tire and they usually come in sets of two or three). A patch kit will allow you to repair one of your tubes if you're unlucky enough to have a second flat. A tire boot (a 1- x 2-inch rubber patch or an old section of tire) is great to have in case the tire gets torn or cut (the boot is placed between the tube and tire to cover the hole). A chain tool allows you to fix a broken or damaged chain. And, a multi-tool (some include chain tools) with four-, five- and six-millimeter Allen wrenches and screwdrivers will allow you to adjust most of the bolts on your bike. And of course, always carry cash and change for food, energy drinks and to call someone to pick you up in case of the rare failure that you can't fix.