I need to change the tube on my bike on the back tire , can anyone give me step by step directions on how to change a tire tube ?How do you change a tube on a bike ?Thing that you will need
Changing a bike tube is not an epic job and as such there are only a few things that you will need in order to do it.
A new tube, Tubes don't cost a lot these days and in general it's easier to simply replace a punctured tube as opposed to trying to repair one, this is especially true during races when the prospect of waiting 5 minutes for rubber cement to set is less than appealing.
3 tire leavers, Although tire leavers aren't essential they do greatly
reduce the chance of you accidentally causing harm to your tire or wheel and in general they make the whole process a lot easier.
A pump, Depending on whether you are on the road or at home when changing the tire, you may have either a hand pump or a standing pump with you. A standing pump is much easier to use but due to it's size cannot be carried while cycling.
1. Remove the wheel of the punctured tire from the bike and lay it flat on the ground. This will be easier if you loosen of your brakes as it will give the tire more room to pass through
2. Use the thin end of your first tire lever to lever the tire onto the outside of the wheels rim.
3. Insert your second tire lever in the same manner a few spokes to the right, then move the two tire levers apart from each other along the rim of the wheel thus bringing an entire side of the tire onto the outside of the wheel.
4. Pull out the old tube by reaching between the rim and the tire and then discard the old tube.
5. Using your hand feel around inside you tire to make sure that there is nothing sharp or rough which will cause another puncture.
6. Insert the valve of the new tube through the valve hole then work around the tube pushing it into the tire as you go.
7. Once the tube is inside the tire, again use your hands by grabbing the whole tire and using the palms of you hands to push the tire back into place.
9. Pump the tire up to the recommended PSI. (normally 35-65 PSI)
10. Remount tire on the bike. Don't forget to retighten your brakes and the skewerHow do you change a tube on a bike ?Justin's answer is pretty good. Here's a link to more info about flats and changing a tube:
http://sheldonbrown.com/flats.html
