A rubber torus shaped balloon which is inflated via a valve inside a tyre to keep it rigid.

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5
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6answers
3k views

What is the easiest and quickest way to pump up a tyre?

I find that I need to pump up my tyres at least weekly and am looking for how to make this quick and easy. So what is the easiest and quickest method of pumping up a bike tyre? As an example, I ...
1
vote
3answers
990 views

Where is the proper location to measure the tube size?

I need to replace a tube in my bike. I know there are many tire sizes. I bought 26', assuming that my bike was that size, and realized when I got home that I didn't even know where to measure from. ...
5
votes
2answers
9k views

Can I convert hybrid to mountain bike. Tyres and tubes?

I have a mountain bike looking frame with wheels that currently have road tyres. The bike is classified as a hybrid. My tyres state: 28" x 1.6 (42-622) The rim: ETRTO 622 x 18 I am having ...
10
votes
4answers
898 views

What should I look for when buying tubes?

I wanted to buy a spare tube to carry while riding, but it appears there is wide choice: the first website I checked carried 92 items in the tube category, another one had 69, with prices varying from ...
1
vote
1answer
525 views

What's the longer-valve, metal-ring inner tube style called?

I have an innertube for a Chariot stroller that apparently came from Europe, and the local bike shop people couldn't find one in their catalogs that was both the right size and having the thing I'm ...
2
votes
2answers
7k views

What do I need to know when replacing my inner tube/tires?

Context: The inner tube on my bike burst the other day, I took it home and salvaged another one from a bike that's been sitting unused in my garage for years. The New(old) innertube inflates fine ...
3
votes
5answers
1k views

Do tube protectors increase rolling resistance or just add weight?

I have been experiencing a lot of flats lately (proportional to the increase in time/distance I have been doing), so I am thinking of adding a tube protector (e.g., one of these) to each tire. Will ...
6
votes
4answers
8k views

Can I use an inner tube that's too narrow for the tyre?

I recently got a puncture and when I went to replace the inner tube I discovered that I'd bought the wrong size tube. My tyre is 700 x 40c, the tube is 700 x 28-35c. What is likely to happen if I use ...
0
votes
3answers
189 views

Techniques for patching a tube [closed]

I asked this question and got very good answers, but now I have a related question. Do you have any special techniques for patching a tube outside of the generic instructions that are supplied with ...
16
votes
10answers
14k views

Patch or replace tube?

Is it worth patching a tube on a mountain bike, or just replace it with a new one? There are a lot of 1/2" - 3/4" thorns here in Texas, and I use 26 x 1.95 tubes. Any particular patch type/brand ...
12
votes
4answers
9k views

Should inner tube have excess length?

I've recently changed the default 700x35 tires and 35mm Schrader inner tube to 700x25 slicks with 25mm Presta inner tubes. However whilst fitting the new tire and inner tube, I noticed that the inner ...
10
votes
4answers
756 views

How can one prevent a tube from sticking to the inside of a tire?

I was cleaning my cruiser today, and as part of that I removed the tires from the rims to give them a good scrubbing. As sometimes happens, the tubes were stuck to the insides of the tires. (This also ...
15
votes
7answers
3k views

Is there a recycling program that accepts unrepairable inner tubes?

The local bike shop, not the wealthiest operation, has a pile of dead inner tubes growing on the floor. I'd love to discover something where used inner tubes are repurposed, melted down, made into ...
12
votes
3answers
3k views

Repairing Presta valves

This is the third time that I've had a leaking Presta valve on the tube. There must be a way of repairing the Presta valve rather than having to discard a good tube. Someone did it by applying glue, ...
5
votes
3answers
611 views

Damaged rim or just the tube valve?

I had a flat on the way to work today. Not really earth shattering, it was about 5 miles in, only a short walk until the office, where I could fix it in comfort. But walking the bike, I noticed an ...
11
votes
3answers
3k views

How do I use the plastic backing on patches?

It seems that the patches I buy for fixing inner tubes come in one of 2 types. Both have metal foil on the stick-to-tube side. One has paper on the other side, the other plastic. With the paper ones ...
20
votes
8answers
9k views

Does the plastic cap on a Presta valve serve any purpose once fitted to a rim?

I can see the use of the valve cap on a Presta valve when the tube is still packaged (it obviously stops the valve puncturing the tube), but does it do anything except look pretty (or not) once you've ...
29
votes
8answers
11k views

How long should a road tyre hold its pressure?

How long should a road tyre be able to maintain a pressure of around 100psi, and what factors are likely to reduce this time? Background: My tyre pressures are consistently dropping to around 60psi ...
7
votes
3answers
1k views

Frequent blow outs in the same location

I keep getting blow outs in my front tube and always in the same location: right next to the valve stem. The blow outs look like: On this same tube, there is wear on exactly the other side of the ...
18
votes
4answers
5k views

Is there a difference in having tires filled with CO² vs Air?

When you fill your tire with a CO² cartridge you are obviously putting CO² into it. When you use a pump you are putting air into it. Are there significant temperature variations that may lead to poor ...
21
votes
10answers
8k views

Do glueless tube patches work as well as glue ones?

Quite a few years ago I tried some glueless patches for repairing my punctured tubes while out on the road, and found that they rarely stayed on for very long. I know that technology has advanced a ...
12
votes
3answers
1k views

Bike tires need air every ride…is this normal?

I ride my bike maybe once a week at most. I need to add air to the tires every time to bring it up to the right pressure. (I ride a mountain bike and I put about 45 - 50 PSI's into the tires.) Is ...
15
votes
7answers
2k views

Which kind of tube valve is the best?

What kind of valve is the best one, a Presta valve (6mm) or a Schrader valve (8mm). Which has the best reliability, which one is easiest to fix a flat on?
12
votes
7answers
1k views

How do I fix a puncture?

I got a flat/puncture on my bike tube, how can I fix it myself without going to the nearest bike shop? What kind of equipment would I need?
37
votes
12answers
13k views

What type of tires can prevent goatheads?

We have a lot of goatheads1 in our area, and they have a tendency to do something like this to bike tires: Unfortunately, I ride a road bike (specifically a Kona Dew), so I have much smaller, ...
8
votes
5answers
1k views

Slow leak on front cruiser tire

I ride my cruiser to the supermarket and back, using either a trailer or a basket over the front wheel for carrying groceries. The bike has developed a persistent slow leak on the front wheel, and ...
37
votes
11answers
36k views

Can I use a Presta tube in a Schrader rim?

I keep losing pressure in my tires, and among other things, I'm looking at the valves in the tubes. It's an old mountain bike with 26 inch tires. Can I use Presta tubes on rims drilled for Schrader ...