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

learn more… | top users | synonyms (2)

1
vote
1answer
298 views

What type of tires have tubes inside?

Don't judge me as stupid just yet, I'm not sure if mine's a tubular or tubeless tire but everyone says tubular tires are glued to the metal wheel. However, mine isn't. It consists of a smooth, ...
3
votes
1answer
123 views

Rim cement as a replacement for rubber cement

Can I use aluminium rim cement for patching flat tire instead of using rubber cement?
9
votes
3answers
449 views

What happened? tube blew the rim?

Had a puncture today, removed the tube, patched it and made it home. Obviously since I only have a mini-pump I could not inflate it to my 8 bar usual pressure. When home, I took the wheel upstairs to ...
-2
votes
3answers
1k views

exploding inner tubes [closed]

Once is happenstance, twice is a coincidence... I just patched my inner tube, rode the bike a bit, parked it in the sun, and about an hour later --BOOM! the tube exploded tearing a 4" gash near the ...
1
vote
2answers
450 views

Should I get a 18/25 tube or a 25/32 tube? [duplicate]

I have a 25mm size tyre and I'm ordering some inner tubes on the net. So far, I seem to have a choice between either the 18/25 range or the 25/32 range. Both would fit but would one size be better ...
5
votes
3answers
624 views

What factors influence the maximum tire pressure other than the tire itself?

On the tires of a bike, there is a label which shows the maximum allowed pressure for it. However, I am wondering if there are any other factors that affect the maximum allowed pressure in a tire? ...
5
votes
1answer
4k views

Complete beginner's question: inner tube too big?

My tire wall tells me that my tires are 26 x 1.95. I bought a 26 x 1.75-2.15 inner tube. When I change the inner tube, though, the tube is bigger than the wheel by two inches. How do I determine inner ...
6
votes
2answers
14k views

I have 27 inch wheels and need new inner tubes what size can I use

I have 27 x 1 1/4 inch tires on my bike and need to buy new tubes. Can I use 700c or just 27 inch?
1
vote
1answer
945 views

What inner tube do I need for this tyre?

Can anyone tell me what spec inner tube I need for this tyre? I discovered the one I'd previously bought didn't look fat enough when I got my first puncture with it the other day, now I'm in the ...
3
votes
2answers
3k views

Can I use a shock pump to inflate a tube?

I know that shock pumps are meant for high pressure applications so that they can withstand high pressures needed by suspension shocks. However, can I use a shock pump to inflate my tire in a pinch ...
0
votes
3answers
179 views

Leak only inside the tire

I have a tube with a Schrader valve, previously repaired (twice). I needed to use it, so I inflated it by hand until it ballooned to 2x the size, search for leakages in water (valve too) and let it ...
1
vote
2answers
736 views

Are 28 / 47 - 622 / 635 tubes ok to replace my 28 / 44 - 622 ones?

I recently got my first flat on my Cube hooper It has 37 - 622 (28 x 1.40 - 700 x 35c) schwalbe tyres on it. I ordered the new tube online before pulling the old one off, picking what I thought were ...
0
votes
2answers
2k views

Life expectancy of a cycle tube and tire?

Can anyone please let me know the life expectancy (no of km or time period) of a cycle tube and tire? Let us consider different cycles (MTB Hybrid Roadbike) and different terrain (off-road slightly ...
4
votes
3answers
1k views

New 26“ inner tube different size to old 26” inner tube

The new 26" MTB inner tube is much bigger than my 26" wheel (and old 26" MTB inner tube). I don't understand why. How to shopcorrectly for new tube? The bike is 1990s Raleigh mountain bike. Edit: ...
2
votes
4answers
3k views

Cheap alternatives to avoid tire punctures

If you head to Walmart and see the slime bike liners for in the tire to stop goatheads and small nailes from actually running the tire. Is there anything around the house or shed that can be used ...
4
votes
3answers
2k views

how to repair large holes in inner tubes

I find that any hole, cut or tear larger than a pinprick is impossible to repair with normal patches because they are too soft. Even a 2-3mm slit will cause the repair patch to balloon out and burst ...
6
votes
1answer
2k views

Picking spare inner tube size

My daily rider is a Schwinn MTB with 26" wheels/tires. Specifically the tire size is 26x47/52. On the inner tube there's a label that reads 26 x 1.90-2.125. I'd like to purchase a few spare tubes in ...
3
votes
7answers
18k views

Why do my tires keep losing air, even after having the tubes replaced?

I had a problem a few weeks ago where my tires were flat and needed air every time I took my bike out of the garage. I brought it to the local bike shop, and they replaced my tubes. This made a ...
2
votes
4answers
5k views

Which MTB Inner Tubes

I have tried a few brands of inner tubes for off road riding, mainly slime and dr. sludge but recently I have suffered more punctures than I'd care for despite the 'green goo'. My question is what ...
4
votes
4answers
1k views

How should I store inner tubes to maximize their shelf life?

The LBS's in my area tend to have major sales around the same time once or twice a year. During this time, I can get replacement tubes at about half their normal price. I can buy several tubes, enough ...
1
vote
3answers
359 views

Storing an inner tube

I got a spare inner tube with my bike, which is good. I checked how it was packed and found it was sticking somewhat when I pulled it out of the box, which I can only imagine is bad. Would it be ...
9
votes
4answers
4k views

Does the inner tube affect the maximum PSI?

If I have road tires that have a recommended pressure of 110 PSI and maximum of 120 PSI can I safely pump my tires up to that level or does the inner tube effect the maximum? I currently have the ...
4
votes
3answers
727 views

Is it normal to wear out the rear tire with in a few months when using a trainer?

Early this year I attached my bicycle to a trainer, around the December time frame of 2011. The rear tire and inner tuber where shot by March of 2012. Riding about 24 Miles per week. Is this normal ...
3
votes
2answers
2k views

what is the ideal presta tube valve stem length

I have noticed that presta tube valve stems come in various lengths. I always assumed the longer valve stems were to allow the use of deeper aero wheels. Why is it that many wheels in print ads seem ...
2
votes
2answers
1k views

What does A/V mean on an inner tube package?

I've got a bike tire that says "(32-630) 27 X 1 1/4" on it. I've got also got an innertube that says "700X18/23C -27X1 A/V". I'm trying to figure out if the innertube is the right size for the ...
7
votes
2answers
1k views

Relationship between punctures and tube pressure

What could be the relation between a bicycle's inner tube getting punctured and the pressure of the tube. Are they directly proportional? I.e, if the pressure of Bicycle tube is higher then it has ...
4
votes
4answers
252 views

Which tube size to prefer if several options apply?

I have 40-622 (a.k.a. 28x1.5") tires, and Schwalbe offers two different sizes of tubes - their models "17" and "19" - as applicable for that tire size. Ok, either one would surely fit well. But ...
2
votes
4answers
5k views

Tube constantly getting punctured near the valve

I have been using my bike for a few years now, and for the last month i am constantly getting this problem. After riding a day or two, it looks like my tube gets rotated a little inside the tire, and ...
6
votes
5answers
5k views

Is there a way to completely deflate a tube?

I had a flat tire and replaced the tube. I just didn't realize that the tube was a thorn-proof tube when I bought it. It was the only spare one I had, so I used it anyway. Just now I replaced it with ...
7
votes
4answers
4k views

If I can't find the hole causing a flat tire, do I need to replace the tube?

My back tire got flat. If I pump it up now, it can hold the air for about 30 minutes to an hour before it's totally flat. I took out the inner-tube yesterday, pump in a bit air and put it into water, ...
10
votes
7answers
23k views

When should you replace tires after getting a flat?

A nail punctured my rear wheel tire today while riding. My question is, how do you know if you need to replace a tire or simply repair it with a tube repair kit? The hole looks pretty nasty. The cap ...
3
votes
3answers
2k views

Best practice for patching snakebite pinch flats on skinny tubes

So, I tend to run 700x23c or 700x25c tires on my commuter bike. Sometimes I'm lazy and forget to check the air pressure and inevitably get a pinch flat when I hit some stationary object, pothole, or ...
0
votes
2answers
12k views

I need help replacing my bike's tube

I recently popped the tube in my front tire and need help replacing it. I don't really know very much about bikes or the assortment of numbers on tubes, tires, and wheels. Here is what I do know: The ...
1
vote
1answer
2k views

unblock slime presta valve

my Sons bike has slime inner tubes. The bike has been sitting in the garage since last summer and the front tyres valve now seems blocked. Its has what feels like 15-20 psi in it but I can not get ...
3
votes
3answers
1k views

Air compressor to fill up to 60 PSI

I am looking for an air compressor and wish to get one which is not under or over powered. I am looking at one in a catalogue which has the following attributes: 40 Litres/min free air delivery 1hp ...
5
votes
6answers
2k 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
652 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
8k 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 ...
9
votes
3answers
792 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
486 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 ...
1
vote
2answers
5k 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
6k 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
179 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
11k 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
7k 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
672 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
2k 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
2answers
2k 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
550 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 ...