Why do my bike tires keep going flat?

Question

Throughout the summer I have had 4 flat tires. I have changed the inner tube each time, and they all keep going flat. I have checked the inner rim and inside of the tire, but nothing has caught my eye. Any suggestions?

Answer 1

Lack of air

Answer 2

Its probably a pinch flat were your spokes poke at your tube! So just get some electrical tape or buy some rim tape at the bike shop; the electric tape works just as good. Then wrap it around your rim over the spoke nipples. haha good luck!

Answer 3

Try this to check your interior tire

1. Get a pan with water

2. Before removing the interior tube make a marker for your orientation.

3. pump some air into the interior tube then put into the pan with water to check if there is a bubble.

      3a. if you notice a bubble, mark it then go back to the rim.

      3b. if you notice a bubble to the opening (air intake) try to tighten the center pin until bubble disapear.

In puting back your good interior tube try the ff.

1. put the interior and exterior tube together.

2. place it to the rim, double check if the interior is inside the exterior.

3. pump air then check again your interior. tap it around.

4. continue until the enough amount of air is in place.

5. Put back the tire into the bike, tighten the nuts and your ready to go

Answer 4

You are not putting in enough air and the inner tubes get caught make sure to check you preasure.

Answer 5

when you get a flat, inflate the old tube and find the leak.  then lay it back over the rim so you can get an idea where the problem is.  then look very close.  i have had tiny, tiny pieces of stuff get stuck in the casing.  it may not even be through all the way, but as you ride, the weight works on the tube and cuts it.

the other common mistake is pinching it when putting the tire on.  it is best if you can avoid using a tool to put it on.  most clinchers can be put on by hand, though on some it is very hard.  if you make sure to push the bead toward the center part of the rim you can usually manage.  i also coat all my tubes in talc before i bag them up.  it helps them move around better and they seem less likely to puncture.

finally, i used to get a lot of flats when i first started riding, and i learned part of it was learning to watch the road.  if you tend to get way over on the shoulder instead of riding in the lane, there is more junk and you tend to puncture more.

Answer 6

Look into these tires:

http://www.youtube.com/watch?v=sKCSGbWbP...

There are just so many reasons for flats that it is difficult for us to pin point it there without actually looking at your wheels. Given all the advice above here is what I suggest:

Take off your wheels and clean the rim with soap etc. Wait till it is completely dry, put a tape on the inside (they sell them at bike stores, don't use electrical if you don't know what you are doing, ghetto methods aren't always best). Then put these Armadillo tires on and chances are you won't have a flat again.

Cheers,

Volodya

Answer 7

ya the spokes are probably poking through get some good rim tape

Answer 8

replace the rim tape. you might have something puncturing the tube on the rim, maybe a sharp edge from changing the tube so many times