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Questions tagged [innertube]

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

0
votes
1answer
47 views

Tube valve cap keeps breaking

For some reason, my valve caps keep breaking. I'm not sure if it happens while I ride or while my bike is not in use, but often when I take the caps off to fill the tubes before riding, I find one of ...
1
vote
2answers
83 views

I can't inflate tire. Should I look for another pump?

Hello to everyone in the community. I used to own a mountain bike which used 26" tires and I was able to inflate them after changing the tube while on the road. It wasn't perfect but allowed me to ...
2
votes
3answers
483 views

Is it ok to trim down a tube patch?

I got a 700x18-23 inner tube that just got punctured. The small round patch on my patch kit is a bit wider than the inner tube itself. Is it ok to cut around the patch so it fits? An added question: ...
3
votes
4answers
606 views

Which tube will fit a -(700 x 25c) wheel?

BF got a fancy new bike, and promptly punctured the inner tube, I’ve been looking in shops for the right size and getting in a right faff trying to find the right size. His wheel says on it -(700 x ...
1
vote
3answers
152 views

Puncture resistant tire vs puncture resistant tube

When would you use a puncture resistant tire vs. a puncture resistant tube?
2
votes
1answer
158 views

Sudden deflation of a mountain bike tube without a bang?

I pumped up my flat tires on a Sunday afternoon and on Monday nothing went wrong, but on Tuesday, my bike was left in the rain followed by scorching sun. During that time, both of my bike tires ...
0
votes
3answers
124 views

Changing 23mm tyre to 25mm - considerations?

I got a L size Opus Allegro 4.0 (2014) which came with Vittoria Zaffiro tyres 23-622 (700*23c) on an Alloy Shimano Asoo WH-R501 wheelset 622x15c. I'd like to fit a wider tyre to improve my experience ...
6
votes
3answers
3k views

Can I pump my MTB tire to max (55 psi / 380 kPa) without the tube inside bursting?

I have a e-mountain bike and I use to commute to uni every day. I have heard that higher tire pressures give you a bit more speed. My tires say I can pump to 55 psi (380 kPa) but I don't know if my ...
0
votes
2answers
66 views

New bike but no idea on inner tube size

I bought a new bike a few days ago, Cannondale Bad Boy 3 2019 which gets delivered in a few days. https://www.cannondale.com/en/Europe/Bike/ProductDetail?Id=7f48452b-f9eb-4e10-89e7-4a7550944bfa ...
0
votes
1answer
132 views

700x25c tubes inside 700x23c tyre

I'm riding on 700x23c tyres with 700x23c tubes, road bike. I've obtained a box of 700x25c tubes. While I'm taking the approach that it's always best to fit the correct size, I'd like to either use, ...
5
votes
2answers
166 views

Tubeless vs Tubeless ready

I've decided to upgrade to road tubeless. Hutchinson sells both "Tubeless" and "Tubeless Ready" tires. According to Hutchinson' website, Tubeless Ready means that (in addition to having a special bead)...
2
votes
1answer
82 views

Is 700c 25/32 iner tubes the same as 700c 18/25?

I'm trying to replace inner tubes on my bike but I got ones that do not match the one that I am taking out of a wheel.
15
votes
3answers
3k views

New wheel. Does it need that little rubber lining between it and the tube?

I recently replaced my rear wheel (hooray for figuring out how to remove the cassette). Now I am about to put the old tube in the new wheel. I noticed the new wheel doesn't have any rubber lining to ...
17
votes
5answers
2k views

Technique for self-adhesive puncture repair patches

Is there any special technique for using self-adhesive puncture repair patches? Today, I've had two different tubes fail within a minute of being inflated because the air pressure had split through ...
2
votes
4answers
1k views

What are the dangers of the tyre/inner tube bursting?

Is there a danger if the tyre or the inner tube suddenly burst?
5
votes
5answers
332 views

Why do my tires always deflate between rides?

I realize this is a topic that’s been posted about a few times, but please forgive me for adding a new thread anyway just to make sure I’m not missing something. I don’t know much at all about bicycle ...
7
votes
4answers
792 views

New high quality tire doesn't sit evenly on the rim

It's my first tire change experience and I got so far using youtube videos but now I'm stuck. Got these Schwalbe 365 tires yesterday for my folding bike. It is an all season model which feels a bit ...
0
votes
1answer
80 views

Inner tube - series of dot marks and a puncture, what has caused it?

This is on the outside of the tube. There is a series of small dots marks about 1-2mm apart, and one of them has turned into a puncture. I've felt around the inside of the wheel, and the inside of ...
2
votes
2answers
197 views

Bontrager thorn-resistant vs self-sealing tubes?

So I arrived in New Mexico a bit over a month ago from the East Coast. Little did I know, there are things called "goatheads" that will give you flats like crazy. So I found that out fast on my 29er. ...
7
votes
3answers
329 views

Inner tubes - if two tubes match the tire, is bigger or smaller better for durability?

Some of the inner tubes tire thickness ranges overlap. For example Schwalbe often offers tubes in 1.5"-2.4" and 2.1"-3.0" width ranges. Given a tire that fits both ranges, like for example a 2.15" ...
9
votes
2answers
624 views

Tube patches: dedicated ones or recycling old tubes?

Before I discovered puncture less tires, I had often to patch my inner tubes. I initially bought dedicated patches (which invariantly were too big or too stiff), then decided to try cutting old tubes ...
14
votes
8answers
750 views

Why using a puncture repair kit instead of a new inner tube?

I am a casual rider (~30 km commute as often as possible) in an urban setting. Reading this SE site to learn about biking (the resource is extraordinary, even though I don't understand every ...
1
vote
2answers
3k views

New inner tube bulges near the valve when inflated

I've installed a new inner tube in my wheel. I checked the tube doesn't make a knot. When I inflate the tube, it bulges near the valve, and this rubs against the brakes. REF tube: 32/47 609/642 ...
1
vote
1answer
1k views

Which inner tube do I need to buy for 28 inch fixie bike?

I have a 2018 FIXIE Inc. Betty Leeds. https://www.fahrrad.de/fixie-inc-betty-leeds-white-694674.html These are the sizes of the tyres: Reifen vorne Marke: Kenda Typ: K-193 Größe: 28 Zoll ...
7
votes
3answers
4k views

How long do inner tubes last?

I recently started biking again after taking about 2.5 years off. My bike has been sitting in my garage since then. I did a 30 mile ride as my first one back and I didn't replace my tubes beforehand. ...
3
votes
3answers
984 views

Why did both of my inner tubes blow out on a new bike I've only put 4 hours on?

I bought a new Diamondback Trace hybrid bike about a month ago. Rode it twice for about an hour a piece and the last time for about two hours. I had no problems any of the times and inflated the tires ...
0
votes
1answer
304 views

Inner tube size

I'm really confused what inner tube size I need to buy for the tyres I have. Is anyone able to help me understand what is written on the tyre and what to look for? 40/100-622 33b moped m/c
2
votes
2answers
114 views

Diameter of valve hole in the inner wall of the rim

Let's say I have presta valve, so the outer hole in the rim is 6 mm (the visible hole). However rim can have inner "wall" inside with inner hole in it -- to my surprise the hole has bigger diameter. ...
3
votes
1answer
593 views

Can I use rimless tape with an inner tube on a regular (tube style) rim?

The plastic and cloth rim tapes at my LBS come in a couple of sizes: too narrow and too wide. Too narrow barely covers the spoke holes (meaning, it doesn't). Too wide gets into the bead area, making ...
2
votes
2answers
410 views

Inner tube valve cut from stretched rim tape?

I was trying to fix my sisters flat tire to make some money by charging her fees cheaper than the bike shop. I found the leak to be on the actual valve piece. Near the base there is a small cut ...
3
votes
4answers
172 views

Could a flat tyre two days later be due to a clumsy service?

I had my bike serviced on Monday. Part way through the workshop called to inform me that they thought both tyres were perished and needed replacing. I trusted their judgement and gave them the go ...
1
vote
2answers
2k views

Can I fix an inner tube if the valve has been pushed inside?

I can't pump my bike tire because the valve of the inner tube has been pushed inside, where its not visible anymore. Is there a possible way for me to fix this or should I buy a new inner tube?
2
votes
2answers
334 views

Schrader inner tube gets cut by Presta sized hole in rim

I am new at bikes. I got an old bike with flat tires which I decided to put back to life. I went to Walmart and got the cheapest inner tubes (Goodyear) which turned out to be Schrader type. I had no ...
2
votes
1answer
138 views

Choosing the right tube for my tire

I wanted to change my bike tire. Is it okay to use 26x1.90 inner tube with 26x1.95 tire?
2
votes
1answer
601 views

Which size inner tubes to buy?

New to cycling and have no idea what size inner tubes to buy for my particular bike. Following dimensions on tire: N28x1.75*36H 622*19c Seems to me this is an unconventional wheel size? Was ...
5
votes
3answers
606 views

Why do I keep getting cut looking flats?

My flats are causing some deep confusion. In the last year I've replaced at least 12 inner tubes because I keep getting flats. They are not puncture or pinch flats, they look like cuts to the tube, ...
5
votes
3answers
378 views

Outside of Schrader valve is inflating. This isn’t right, is it?

My wife has an old Moulton bike. I was inflating her tyres (small wheels, tyre imprinted ‘50 pounds’, when the rubber surround of the Schrader valve started inflating also. It all seems quite ...
5
votes
3answers
681 views

I keep getting flats right at the valve!

I changed 3 inner-tubes, they keep getting cut right at the bottom of the valve. I sanded down the hole where the valve goes, it had a sharp edge! Flats still happening...
8
votes
1answer
327 views

How do I patch a tube's ribbed area?

Normally, when applying a patch to a tube, both the patch and the tube surfaces are smooth and it is easy to press the patch onto the tube. However, some tubes have small ribbed areas where it is ...
2
votes
1answer
177 views

Tire and Tube size mismatch

I have a tire with 24x2.125 written on it, and the new inner tube which I'm planning to install 24x2.175-3.0 Is this too big for the tire and can be prone to punctures etc. or should be OK? It is a ...
3
votes
5answers
1k views

4 punctures in one week, even after replacing tube and tire, what's happening?

I've just had my 4th puncture in 8 days on the bike I use to commute to work. Same back wheel each time. I haven't had a puncture before in the 2 years I've had this bike. After the first puncture I ...
-2
votes
2answers
381 views

I just bought a new Cube Hyde Bike [closed]

I just bought a new cube hyde 2017 bike and I'm not the biggest fan of the stock tyres that came with the bike. I mainly use it on roads and urban areas so I would prefer a more low profile tyre. Any ...
4
votes
1answer
270 views

Does an old tire become tight?

I'm asking this question (see the title) because I wasted so much time/energy (after having a punctured tube) trying to remove the tire and to put it again, while the guys I see on Youtube don't seem ...
5
votes
1answer
389 views

Sidewall repeatedly splitting in same place on rim

Good afternoon, folks. Wondering if anyone has had this or a similar issue: I blew a tire a few weeks back and replaced the tube and tire after thoroughly inspecting the rim for damage. After a few ...
3
votes
1answer
721 views

Tube compatibility for given tyre dimensions

My tire says: 700x40c 40-622 , is the tube in the picture a perfect fit?
3
votes
1answer
917 views

Can't get tire to seat right when changing tube

I can't change tires for the life of me and I'm not sure what I'm doing wrong. I go through the standard procedure: Slightly inflate the tube Put the tire halfway on the rim Stuff the tube into the ...
2
votes
2answers
367 views

Presta valve inner tube issue: area around the valve does not fill up

I have this problem I keep running into and it's getting pretty expensive. I've bought many inner tubes and when I pump the tire up with air, the inner tube fills up really good except in the area ...
3
votes
1answer
254 views

How do I prevent a tube valve from fusing to my rim

I have a 20" Sun Rims CR-18 rear rim. This rim has a cylindrical metal sleeve that goes through the valve hole. Not sure where that came from, as I inherited the rim with the bike when I bought it ...
4
votes
1answer
740 views

What's the smallest possible tube that will work with my bikes?

I've seen questions concerning tube size but I haven't found anything matching what I'm trying to accomplish. I want to buy a few tubes to keep around for trails-side emergencies when mountain biking....
6
votes
1answer
273 views

How does Slime coagulate and seal holes in tires?

How do tire tube sealants like Slime coagulate and seal holes? They can't coagulate like blood, because there's air already in the tube and they'd solidify. It also can't be in contact with moisture ...