flat tire tutorial?
#1
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flat tire tutorial?
where can i find some good resources on flat tires?
last week, i got a flat from my 27x1-1/4 rear tube. it was after I finished my first paper route using my cargo bike trailer, so I assumed that the flat was caused by the amount of work the tire had to do, so I switched my delivery to a mtb.
Now, a week later, I got another flat. The new tube is a 27x1-1/8. The tire was fine all week and before I left home today. I'm not sure when the tubes gave out, but I discovered that they were completely flat after I finished playing tennis.
I'm going to do the bubble test in a moment, but I suspect the cause is not a hole in the tube.
Lastly, I'm looking for some durable tubes that are also inexpensive. Where can I get them? Amazon? bike shop?
last week, i got a flat from my 27x1-1/4 rear tube. it was after I finished my first paper route using my cargo bike trailer, so I assumed that the flat was caused by the amount of work the tire had to do, so I switched my delivery to a mtb.
Now, a week later, I got another flat. The new tube is a 27x1-1/8. The tire was fine all week and before I left home today. I'm not sure when the tubes gave out, but I discovered that they were completely flat after I finished playing tennis.
I'm going to do the bubble test in a moment, but I suspect the cause is not a hole in the tube.
Lastly, I'm looking for some durable tubes that are also inexpensive. Where can I get them? Amazon? bike shop?
Last edited by mrund3rd09; 05-29-11 at 09:44 PM.
#2
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do you have rim tape on your rims? if not then it may be the reason you could be getting flats. those rubber bands on the rims sometimes fail and will allow the spoke or nipple poke a hole in the tube. could also possibly be a loose valve. i have had that happen before.
#3
Strong with the Fred
For 27's I go to walmart. Their prices are good and even they can't mess up on tubes and they even carry the hard to find 26x1 3/8, For 700's I go to my LBS.
Make sure that you aren't pinching the tube between the tire and the rim, a very common mistake. Wneh placing the tire back on the rim, you should be able to do most, if not all the work by hand with little help of your tire tools.
Run your fingers along the inside of your tires to feel for any sharp object that may be lodged in the tire, even an unseen thorn can cause problems.
Ernest
Make sure that you aren't pinching the tube between the tire and the rim, a very common mistake. Wneh placing the tire back on the rim, you should be able to do most, if not all the work by hand with little help of your tire tools.
Run your fingers along the inside of your tires to feel for any sharp object that may be lodged in the tire, even an unseen thorn can cause problems.
Ernest
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where can i find some good resources on flat tires?
last week, i got a flat from my 27x1-1/4 rear tube. it was after I finished my first paper route using my cargo bike trailer, so I assumed that the flat was caused by the amount of work the tire had to do, so I switched my delivery to a mtb.
Now, a week later, I got another flat. The new tube is a 27x1-1/8. The tire was fine all week and before I left home today. I'm not sure when the tubes gave out, but I discovered that they were completely flat after I finished playing tennis.
I'm going to do the bubble test in a moment, but I suspect the cause is not a hole in the tube.
Lastly, I'm looking for some durable tubes that are also inexpensive. Where can I get them? Amazon? bike shop?
last week, i got a flat from my 27x1-1/4 rear tube. it was after I finished my first paper route using my cargo bike trailer, so I assumed that the flat was caused by the amount of work the tire had to do, so I switched my delivery to a mtb.
Now, a week later, I got another flat. The new tube is a 27x1-1/8. The tire was fine all week and before I left home today. I'm not sure when the tubes gave out, but I discovered that they were completely flat after I finished playing tennis.
I'm going to do the bubble test in a moment, but I suspect the cause is not a hole in the tube.
Lastly, I'm looking for some durable tubes that are also inexpensive. Where can I get them? Amazon? bike shop?
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![Roll Eyes (Sarcastic)](images/smilies/rolleyes.gif)
Second, flats that result from the bike standing unused for a few days to a few weeks aren't random events. That's just physics. The tube is mostly impermeable to air but not completely air tight. Air leaks out over time. The higher the pressure the faster the leakage...generally. Check your tire pressure before every ride, especially if you haven't ridden the bike in a while.
Finally, a patch costs less than a tube. Learn how to patch tubes. You don't have to stop patching at 1 or 2 or 10 or even 20 patches. The most I've ever had is 25 and the only reason I quit was because the stem pulled out. That, and a blowout, are about the only reason a tube is unusable.
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Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
#6
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sweet. I found holes in both tubes. they're at different locations so I don't think the rim or the tire is at fault.
Another thing, do I have to worry about holes that you can't detect using the bubble test? Can there be holes so small that the water pressure won't make bubbles in the tube?
lastly, what if the tubes develop lumps?
Another thing, do I have to worry about holes that you can't detect using the bubble test? Can there be holes so small that the water pressure won't make bubbles in the tube?
lastly, what if the tubes develop lumps?
#7
The kind of micro holes that make you pump air once a week are just par for the course. My front tube has four patches on it and will keep getting repaired as long as I can get away with it. It can hold air for months, which to me it makes it better than a brand-new tube.
Lumps on the inner tube doesn't matter. All of the strength of the inner tube comes from being held in place by the tire.
Carry a piece of canvas or other material to fix rips on the tire itself. If a rip is big enough, the tube will pop through it every time you try to pump pressure on it.
Lumps on the inner tube doesn't matter. All of the strength of the inner tube comes from being held in place by the tire.
Carry a piece of canvas or other material to fix rips on the tire itself. If a rip is big enough, the tube will pop through it every time you try to pump pressure on it.
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