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

learn more… | top users | synonyms (2)

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2answers
61 views

What kind of tires I can use with tubeless rims?

I bought a Trek FX 7.4 last summer, and now, as the conditions are getting more and more slippery, I'm thinking of getting a bit more winter-y tires. The rims are tubeless, but I'm a bit confused of ...
1
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3answers
102 views

Help! Tire Pressure

I have a sorta light weight 54cm fixed gear (18 pounds) and I weigh about 115 pounds. I have a set of continental ultra tires for my 622/14mm (700x23) bianchi rims with standard 20-25 tubes. The thing ...
3
votes
5answers
235 views

Do good tires lessen the chances of your innertube bursting?

I have only bought my bike for a month and a half and within this time span, my innertube actually burst 4 times. The bike itself is relatively cheap so I doubt that the tires are of good quality. I ...
4
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2answers
55 views

Valve Extender for Kids Bike

I can't seem to fit my bike pump onto my son's bike. The tires are too small, and there isn't enough of a gap to put the head of a bike pump on the valve. Are there any valve extenders (not ...
3
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1answer
98 views

Tubular Glue vs Tubular Tape

I'm looking into going for tubular tyres and I'm new to this part of the world. As far as I understand there are two main options to mount the tyre: 1. Tube Glue which kind of a pain in the ass ...
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1answer
256 views

Will an innertube for 700x35c-44c be ok for a bike that says it needs size 700x45c?

I need to replace my innertube and took a photo of the tyre mark to show the guy in the bike shop for the size. It says 700 x 45c. I bought the innertube he gave me based on this and only checked the ...
2
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1answer
189 views

Homemade Tubeless Tires

As I was browsing Youtube for cycling related videos, this one on making your own tubeless setup caught my eye. The procedure is essentially as follows: Clean a standard rim (not for tubeless ...
2
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5answers
102 views

How can I tell if I have properly patched a tube? (specifically a 2" mt. bike tube)

I normally swap out a the tube on the trail if I get a flat and then patch at home. So that leaves me with a patched tube ready to put in a tire and I'd like to test it without having to swap out a ...
3
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4answers
587 views

“Quick Fix” Tyre Repair Spray Cans

I saw this in my local supermarket, as they are having a cycling event on at the moment. I was thinking this would be quite useful if I had a puncture away from home, the car or bike repair shop, or ...
4
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2answers
229 views

Will Slick Tires Work for a Mountain Bike Ridden by a Heavier Rider?

I've owned a Trek 3500 bike (shown below) for 2.5 years now and I like it very much. My bike has the same specs as under the link. It has the XL frame size and 26" wheels with Bontrager AT-550 ...
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2answers
153 views

Why has my ride changed?

The bike is a Specialized Camber 29, about five months old, from a shop about 220km away. Something feels different in my ride, and I'm wondering what it is. the rear goes sideways in sand much ...
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2answers
107 views

The tire got flat the third day of changing it

I'm new to bikes. I got a used bike that had all the tires and tubes broken so I had to change them all. I changed the tires and the tubes completely two days ago, then I went cycling the next days. ...
0
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1answer
126 views

Tire's won't inflate after winter

A few weeks ago I tried to take my Trek road bike for my first ride since last fall. It has been sitting in my (uninsulated) garage over throughout the winter and when I tried to inflate my tires the ...
1
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2answers
205 views

What is a cheap puncture-proof tire against tackweed?

Lately, each time I ride my bike around the Bay Area, I get tackweed onto my wheels where upon one or both of them flatten overnight. Most of those are five minute rides to my local library. So, I ...
2
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2answers
280 views

Can I approximate how much air pressure is lost from disconnecting the hose?

I have a floor pump intended for mainly rather low pressure tires. It lets out quite a bit of air from the hose when disconnected. Can I calculate (approximately) how much air pressure is lost by ...
2
votes
1answer
512 views

What does vulcanizing solution in patch kits consist of? Can I buy it?

I have a pile of old patch kits for inner tubes that are complete except for the little tube of "vulcanizing solution" that comes in patch kits. With time, these tubes crack, or have a cap fail to ...
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3answers
163 views

Do I have too much chafer strip showing after fixing a puncture?

I have had two innertubes explode on me on my bicycle, on the same wheel and tire. The first time I was inflating my inner tube after aquiring a puncture. On this occassion I was pumping my tires ...
3
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1answer
336 views

installing a 700-18-23C tube on a bicycle

When installing a 700-18/23C tube, does the nut on the valve stem go inside the tire (unseen once the tire is on the wheel rim) or outside the rim (so it is seen among the spokes)?
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3answers
477 views

Cycle tyre and tube burst

I pumped my cycle front tyre to 105 psi (700*23c) 5 days back and cycled some 60 km on the same day without any punctures. Afterwards I parked the cycle in my bedroom for the last 5 days (due to ...
2
votes
1answer
258 views

What size of slick tire should I buy?

I purchased a mountain bike and I ride on the road most of the time and I was looking at slicks for my bike. My tire size that I have now is 26x2.00 and the rims. I have on are AT-550 26inch what size ...
2
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1answer
97 views

Dawes Super Galaxy - Tubes

I picked up a near new Dawes Galaxy that had been in storage for 8 years. I'm super excited to get on a tour. I have both Lands End to John O'Groats and London to Paris locked in:) The tires are ...
2
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3answers
135 views

Why would each patch produce a new leak before resintalling tube?

I got a puncture in my tube (size 700c x 23c, Kendra, came with bike) and applied a vulcanizing glue and patch, then checked it. Before reinstalling the tube, there was now a new leak right next to ...
29
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2answers
2k views

What are the effects of completely filling tires with water instead of air?

As absurd as it sounds, I was curious as to how a bike would handle with the front tire filled with water. I wonder if steep hill climbs would be easier (particularly for a mountain bike): 1) to ...
4
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2answers
105 views

Why would tube patch sometimes peel off with backing?

Sometimes, when patching a tube, the newly placed patch will peel off when removing the backing. Sometimes I have this problem and sometime I don't and I'm not sure what the difference is. Is it the ...
9
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1answer
551 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 ...
2
votes
3answers
958 views

Best way to patch road bike tubes

I've scoured the internet for this answer, as I recently just tried to repair a tube on my Purefix fixed-gear bike which I assume uses tires and tubes similar to road bikes, as the tire size is ...
1
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1answer
90 views

mountain bike switching tyres I get a puncture, why, am i doing something wrong?

I have a mountain bike with 2 sets of tyres, a road set and off road set, when I switch between them about 1 in 3 times I seem to get a puncture, and I can't see why? I've gone though 4 innertubes ...
3
votes
2answers
4k views

Deformed/uneven/bumpy wheel/tire/tube, how to diagnose or repair?

My bike has a deformation in the rear wheel, almost surely not due to the rim. At some point the tire has a "valley", causing it to bump instead of rolling smoothly. I'd like to understand if I have ...
2
votes
2answers
386 views

Leaking Slime inner tube valve after opened for first time since install

I put some extra air in my rear mountain bike tyre yesterday. It uses the SLIME inner tube. It wasn't flat nor had a puncture, I was just topping it up to make the tyre a bit harder. I cycled to work ...
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votes
10answers
2k views

Any alternative use for old mountain bike tyres and inner tube?

I have recently changed the original tyres and inner tube of my 15 year old Specialized Rockhopper. They were starting to deteriorate and I got punctures almost every time I took it on gravel paths. ...
3
votes
3answers
177 views

What are these diagonal marks on my innertube?

I'm on my second inner-tube in as many weeks and the culprit seems to be the same between them; these diagonal marks on the side around the whole of it—but only on one side (sorry, didn't make a ...
4
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2answers
209 views

How many times to patch a tube before dumping? [duplicate]

Related: Patch or replace tube? This video asserts that: A properly patched area of a tube is stronger than intact tube area Never patch a tube more than 3 times Those are seemingly ...
4
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2answers
1k views

How to Patch a Bike Tube?

Related (but more general): What steps should I follow to patch a tube? I have done this more than a hundred times, but am still not sure what are the correct steps. Here they show to put glue ...
1
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1answer
495 views

Storing spare tube under saddle bag

The saddle bag I own has two elastic loops on the underside. From reading this question on long-term storage of tubes I can see tubes don't like changing temperatures (not really a problem in Ireland ...
4
votes
3answers
168 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 ...
1
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1answer
209 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
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1answer
103 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
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3answers
402 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 ...
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votes
3answers
887 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
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2answers
301 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
487 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
3k 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 ...
5
votes
2answers
10k 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
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1answer
765 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
2k 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
172 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
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2answers
524 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
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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 ...
2
votes
4answers
2k 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 ...