How to wrap your spare bicycle tube to make it compact, waterproof and fit more in your cycling saddle bag: In this video we show you some important steps left out of other similar videos. The steps are simple and work on road cycling tubes, mountain bikes, trail bikes and others types of cycling inner tubes. 1. Be sure to slightly inflate the tube first before installing so that the so that the inside of the tube doesn’t stick together when you pump the tire or especially with a CO2 cartridge which might just blow the valve out. 2. Coat the spare with talc or baby powder which will not only keep the outside of the tube from sticking to each other but also allow the tube to be shaken up into the tire when installing. 3. Let all the air out by unscrewing the valve and then place a piece of tape over the end of the presta valve tight enough to hold it in the open position. 3. Roll the tube from the end opposite the valve pressing the presta to make it compact. Then close the valve end and replace the cap. If you’re using a shrader valve you will need to periodically have to press the inside of the valve with a small screwdriver to let air out. 4. Apply the cap to the valve so it doesn’t rub against the rubber and cut into the tube. Then wrap the tube around the valve and cover. Apply the rubber band that comes with the tube. 5. Place in a zip lock and push out all the air in the baggie as you zip it shut. Fold the baggie and either use rubber bands to hold in place or a tape the can be torn to allow access when needed. The process is easy, waterproofing your spare and fit more bike saddle bag when cycling.