Also called "flat". Ways to avoid punctures, deal with punctures, etc.

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34
votes
12answers
9k 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, ...
32
votes
12answers
7k views

What are the disadvantages of “puncture proof” (or puncture resistant) tires?

Some people refer to tires that are more resistant to punctures as "puncture proof" tires. For example: Specialized All Condition Armadillo Tyre Even though these tires are not really puncture proof, ...
24
votes
8answers
2k views

Broken glass on the bicycle path, what to do?

Often I find myself driving with my racing bike on the dedicated bicycle lane in my city. The problem with these bicycle lanes is that there is a lot of broken glass (once every few kilometers). ...
21
votes
11answers
5k 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 ...
19
votes
6answers
16k views

Am I too heavy for my road bike tires?

I am wondering if bike tires have a weight limit. I have to admit, I am a large guy at 6'3" 250lb (190 cm, 113,5 kg), and I have always had issues with my road bike's tires getting pinch flats. I ...
16
votes
3answers
6k views

What's the rubber tube in my puncture repair kit for?

I've got an old school puncture repair kit, the type with glue and patches. As well as the sandpaper, patches, 'vulcanizing fluid' and instructions, there is a 2.5cm long, 3mm wide, beige rubber ...
16
votes
7answers
13k views

How to get the tyre back on to the rim easily?

What is the best/easiest way to get the tyre back on to a rim after removing it to fix a puncture for example? Some tyres can be really hard to get back on to the rim. I don't like using the tyre ...
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 ...
15
votes
7answers
1k 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?
15
votes
3answers
662 views

What is the maximum number of pucture repairs an inner tube can take?

Any thoughts - my spare tube that I carry in my bag currently has a dozen or so patches on it, but still works fine. I'm tempted to keep going to see how many I can get on there until it get ...
14
votes
5answers
2k views

Why do I always get punctures in my rear wheel?

I get probably five times as many punctures in my rear wheel as opposed to my front wheel. I run a good pressure and don't get obvious pinch flats. Does anyone have a logical reason why this could ...
13
votes
7answers
1k views

Fixing a flat - how to find the piercing object?

Just had a flat and having problems finding the thing that pierced the tube in the tire. Normally I just run my fingers around in it, until I found it, but this time everything looks O.K. My ...
12
votes
4answers
1k views

What is a good way to keep my tires from going flat easily?

Title says it all, how do I keep my bicycle tires from going flat easily? I live in an area with a lot of sharp stuff (think glass shards, nails, cactus, etc)...
12
votes
10answers
7k views

Which puncture-resistant tires?

I commute on city streets and have had two punctures in 5 months: first a roofing nail, second a small shard of glass. Punctures are a nuisance. I've read some people recommend Schwalbe "Marathon" ...
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?
11
votes
2answers
531 views

What's the best technique for removing a tyre from the rim?

This question talks about fitting a tyre back onto a rim, but I'd like to know how to get the tyre off in the first place. Especially if the tyre is very tight, or the dip in the middle of the rim ...
11
votes
3answers
2k 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 ...
10
votes
7answers
14k 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 ...
10
votes
3answers
1k views

What kind of flat is this?

I'm stumped. For the last yew years I have been getting flats that look like this: As you can see, it's a tiny, tiny hole that can only be found by inflating the tire to twice its size or so. I ...
9
votes
7answers
448 views

Repeat Punctures

I was cycling home today and I got a puncture a few minutes in where the air slowly drained rather than instant rim to concrete! Fitted a new tube and 10 minutes further down, exact same issue. ...
9
votes
1answer
420 views

Benefits of latex tubes… Are they worth it?

Is using latex inner tubes worth it? My use of it would be on a racing bike, for training and racing purposes, only on road, mostly in good condition (but in an urban environment so there are some ...
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 ...
8
votes
3answers
506 views

What is the purpose of the rubber stripe between the wheel and the air chamber?

I had a flat tire and replaced the air chamber. While doing that the rubber stripe that stands between the wheel and the air chamber ripped and it's no longer a ring. It´s hard to put it correctly and ...
8
votes
5answers
544 views

Fix / clean or throw away tire with 30+ thorn punctures?

I recently rode through a horrible thorn patch. I came out with 2 flat tires. Upon examination, I found that the tube was punctured in 10+ places. Throw away. The tire has 30+ small thorns in it. ...
8
votes
3answers
129 views

Are bikes more prone to punctures after a spell of rainfall/flooding?

We've had an unusually wet winter and flooding has been a problem in my area. Now that the weather has improved and cycling is possible/pleasurable again I'm finding I'm getting many more punctures ...
8
votes
3answers
2k views

Is it a good idea to get a narrower front tire and a wider rear tire on a road bike?

I am currently running Continental Grand Prix S 4000 in 23-622 / 700x23C front and rear. I am about to buy a new set of tires for my road bike and am fancying a smaller tire for the front and a wider ...
8
votes
4answers
2k views

How can I repair a tyre with a deep cut?

I have some foldable racing tyres, still with plenty of tread but with some small cuts through the tread & cloth. Can I do anything to them or are they destined for the bin?
7
votes
4answers
2k 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, ...
7
votes
3answers
267 views

Is this a puncture protection thing?

I got a vintage bike to commute with (I wanted a heavy one for the exercise) and I was hoping for a flat so I would have an excuse to spend money on a puncture resistant street tire to replace the ...
7
votes
2answers
794 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 ...
7
votes
1answer
1k views

Do narrow tires puncture more frequently?

Does a narrow bicycle tire puncture more often, or does it requires more attention regarding its maintenance and servicing?
7
votes
2answers
3k views

How do you fix a puncture on tubeless tires?

I recently got a new bike with a set of tubeless compatible rims. The stock tires are clinchers with tubes. I'm thinking about putting tubeless on there, but I don't have any experience with them. We ...
7
votes
2answers
282 views

Do I need to patch my tubed-tire if I have a puncture?

I have about a 2 mm gash around the outside of my tire from a piece of brown glass. It gave me a slow leak and while I've patched the tube, do I need to do anything about the tire itself?
6
votes
7answers
3k views

I keep getting flats

I have been getting flats every 20-30 miles for the last 2 months. This has caused serious inconvenience to me, as bicycle is my preferred mode of transport to work and class. Details of the ...
6
votes
3answers
671 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 ...
6
votes
4answers
2k views

Are there other explanations for slow tyre pressure loss?

I rode my road bike on Friday and the tyres were at the correct pressure then, around 100psi. On Tuesday, I jumped on without checking them and quickly realised something was wrong with the rear ...
6
votes
5answers
4k views

Is there anything I can do to prevent snakebites (pinch flats)?

Riding in an urban setting, I've lost two tubes in the last week to snakebites, and it's easily the most common way for me to get a flat. I've got Gatorskin treads, which help prevent standard ...
6
votes
5answers
234 views

How do you deal with flats in the winter?

I was lucky last winter I went the entire winter without getting a flat. I attribute it mostly to: sharp items on the road being hidden under snow and ice less agressive riding resulting in no ...
5
votes
7answers
4k views

Why does the glue in a puncture repair kit dry up so quickly?

With puncture repair kits, generally you get like 6-8 patches and a tube of glue. The only problem is I can really only use the glue for the first patch because once it opens, it just ends up drying ...
5
votes
2answers
1k views

Recurring flats

I've had 4 flats in three rides, all rear wheel. I can't see anything in the tyre, the tyres relatively new, the rims look good. Needless to say I'm getting pretty hacked off with having to keep ...
5
votes
2answers
171 views

Does riding on the sidewalk make it more likely to get a flat tire?

I just started bike commuting, and the two times I've gotten flats were when I was biking on the sidewalk, and in both cases they seemed pretty random. I use a mountain bike. Is it just a coincidence ...
5
votes
3answers
4k views

How To Prevent Holes Around The Inner-tube Valve?

In the last two months I have experienced something new: three inner-tubes (700X25) have popped with holes immediately around the valve and on the same side of the tube as the valve. I suspect there ...
5
votes
3answers
145 views

Is it worth it to buy a bike that comes with puncture resistant tires, or add them later?

Is it better to buy a bike that comes with puncture resistant tires, or get a cheaper bike that comes with worse tires and then get them replaced?
5
votes
3answers
456 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 ...
5
votes
1answer
159 views

Unused puncture repair patch - what's its useful shelf life?

Sometimes I fish around in my shed for a repair kit and pull out a pair of patches which have been sat around for a while (a year?) I find the patches are stiff (even though they're still in their ...
5
votes
1answer
1k views

Flat tire: white liquid inside the tube

I got a flat tire, kind of a big hole in the inner tube. It was raining a lot so I walked home through the rain and water puddles, and everything got wet. Now I want to patch the inner tube, but ...
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 ...
4
votes
1answer
517 views

What are pinch flats?

Also known as a snakebite or pinch cut, a pinch flat is a common term among the bicycling community for a certain type of puncture — but what exactly defines one? What causes pinch flats? What helps ...
4
votes
2answers
156 views

Pinch flats: hardtail vs full suspension. Differences?

I ride a hardtail, and I wonder if a full suspension prevents pinch flats in the rear wheel. I don't get pinch flats; but I want to know what to expect from a hardtail vs full suspension. I'm a heavy ...
4
votes
3answers
159 views

Can small pebble inside tire puncture the tube?

Shortly after changing a flat in a dirt road near home, I got another one. This last tube got a very small puncture. Inside the tire I also found some small pebble (like 1mm or less in length), but no ...