Be prepared. When going on long trips on your bicycle, it is always a good idea to carry a spare tube of the right size. Your tube size is indicated on the sidewall of your tires and in your owner’s manual. You should also consider carrying a patch kit – a compact and economical alternative to a new tube. Tire levers that make removing the tire easier are compact and can usually fit into even a small underseat bike bag. You will also need a portable pump to re-inflate the tire after tube repair or replacement.