Questions tagged [innertube]

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

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1
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3answers
105 views

Unable to pump air in my bicycle tube

I am a new biker. I got some tubes to replace, but I am not able to identify the valve, I try to force air with presta convertor but the moment I remove it air blows off in a second. Please help ...
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2answers
64 views

Trying to figure out which tires/tubes I can use

I have a road bike tire with the following markings: 50-559 26x1.95 K935-001 I weigh about 200lbs and will probably carry a pannier holding 40lbs. Some research said that my tire should inflate to ...
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2answers
38 views

Inner tube for Michelin tyre [duplicate]

New to all of this. Which ranges of inner tube would fit in a 29 X 1.4 SLICK MOUNTAIN BIKE TYRE WILD RUN'R? Should I also worry about valve size? If possible, can I have a good source for learning ...
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3answers
491 views

How long does it take to deflate a tube for a 26" bike tire?

Simply by removing the valve, how long does it take to deflate a tube for a 26" bike tire? Also, is there a safe and quicker alternative to do it? Thank you.
3
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1answer
463 views

What inner tube should I buy for 47 tire size, 650bx47c tires?

I'm pretty new on this and want to buy a spare inner tube. These are my specifications of the tires: Tire Size 47 Tires Maxxis DTR-1, 650b x 47c Wheel Size 27.5 Presta valve When I'm browsing, I see ...
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2answers
90 views

What is making my tire squeak without riding it?

I have a Skullbone (HBB) bike. I aired up my tires and now it’s making this squeaking noise when I turn the wheel right to left (not when riding it). I’ve never had this problem before. I aired the ...
21
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4answers
4k views

Tyre exploded while riding

I was riding my bike today and it suddenly exploded. I have attached a picture. The tube was not over inflated and I haven't been riding on rough surfaces. What happened? Was the tube or tyre faulty? ...
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2answers
207 views

Changing road bike tyre from 28mm to 32 or 35mm [duplicate]

I have a Triban RC500 bike. Apparently it's wheels can take wider tyres. A lot of internet info suggests that this is a good thing to do for comfort and perhaps for better rolling resistance too? My ...
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2answers
2k views

Why does the manual for the inner tube say the maximum pressure is 4.5 PSI?

I recently picked up a pair of Schwalbe Aerothan inner tubes which are made of plastic and very lightweight. The manual for these tubes indicates that the user should not inflate past 4.5 PSI. Quote: ...
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1answer
86 views

Standard or specification for diameter of valve stem holes

I have a rim with a Presta valve hole, but I would like to drill it out to fit a Schrader valve. Is there a specification for how large the hole should be? I want to be sure the hole isn't too big, ...
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1answer
75 views

What is a substitute inner tube for 27x2.125" tyres (in Prague)?

I'm on an extended bike tour on an... unusual... bicycle, and I've run out of spares. DECATHLON in the Czech Republic doesn't seem to sell tubes in my size (I've tried 3 already), and I don't have ...
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5answers
2k views

How seriously should I take Fulcrum Racing 6DB tubeless tire compatibility warning?

I recently purchased a bike with Fulcrum Racing 6DB wheels and Kenda Flintridge tires. They came tubed, and I'd like to convert them to tubeless. However, in a manual on their site, Fulcrum list that ...
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1answer
439 views

Problem with replacing inner tube of old bicycle with tire code: 47-559 (26 x 1.75)

I'm replacing the inner tube of old bicycle with tire code: 47-559 (26 x 1.75). I bought a new tube that has spec: 26*1.75 - 2.125 (47/57- 559). However, the diameter of the new inner tube is too ...
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0answers
39 views

bike-frame-jig: customizations of a standard model - interesting features added [duplicate]

good day i am in the mid of creating a bike-frame-jig. the model is oriented at tanner w s jig: https://www.instructables.com/id/Bicycle-Frame-Building-Jig/ see some the parts (here as Acronyms ) he ...
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0answers
44 views

tube size will 18/25c work for 20/25c [duplicate]

I have a tire -standard 25 mm. Normally I get tubes 700x20/25c which is what I ordered, but received 700x18x25c will they fit and be ok?
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1answer
153 views

Tire is losing air but inner tube seems to hold air

I got a flat on my back tire and bought a new innertube. I put it on my bike, filled it up but it lost all air again within minutes. I took the new tube out, pumped it up to find out where the hole is,...
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1answer
164 views

Carbon steerer tube scratch (inside the tube) - how bad is it?

Today I looked into my steerer tube and saw this: Since Im new to carbon frame, I cannot decide if this is a serious problem which has to be fixed asap, or just a minor scratch on the surface. It ...
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0answers
27 views

Changing tire from 26×1.95 to 26×1.75 [duplicate]

Can i change a 26×1.95 tire to 26×1.75 tire on the same wheel? If possible,am i need to change the innertube also?
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1answer
59 views

Inner tube valve fit/pumping question

I have an old double trailer from when my kids were little that I kept and use to haul stuff. Yesterday I heard a loud bang while it was sitting in the driveway, and it turns out one of the inner ...
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3answers
113 views

What might be causing my inner tubes to get rips behind the valve?

I'm on my third inner tube now and it's always the same problem: an oblong shaped rip on the part right behind the presta valve. I'm at a loss since instead of the valve side, these rips are appearing ...
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4answers
1k views

How to best quick fix worn out tyre

I want to share my experience and ask for some further question on this issue. I was on a roadtrip as I found out that tyre on my rear wheel was worn out. I could clearly see the threading (if this is ...
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1answer
93 views

Presta valve problem

new to the Presta valve game, I just replaced my tube and the valve tore in less than 10 mins of riding. My bike tire is 26x1.9 the tube the got was 1.7-2.4. I have both the same rims and the front is ...
8
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1answer
282 views

Can Latex inner tubes be patched?

I've personally never ridden on Latex inner tubes. If I get a puncture on a latex tube I'd prefer to be able to fix it, given they're a lot more expensive than regular butyl tubes. My research ...
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3answers
821 views

Tire pressure with latex tubes: higher, lower, the same?

I have just mounted a set of latex tubes to try it out - inside a set of s-work turbo cotton 26 mm on a regular roady. You notice the difference immediately. The feel is just very different. In ...
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2answers
68 views

Pump/PSI issues

Good afternoon I have recently bought/installed new inner tubes and tyres (26" x 1.95") for my bike as attached (https://www.vandorm.co.uk/collections/26/products/vandorm-26-schrader-valve-inner-tube ...
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1answer
46 views

What inner tube size

I have a early 1960’s Schwinn Corvette with a tire size of 26 x 1 3/4 S7. I can find the tire replacement but not the inner tube replacement. Can anyone help me ?
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3answers
2k views

How did these pimple/bubble/bump shapes form on my tube?

I've been riding on the same rear inner-tube for several months without issue. I topped up the rear tube last week, went on ~10mi ride (including a rest in the middle), and had no problems. I was ...
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1answer
59 views

How do I inflate this bicycle tire valve? [duplicate]

I inherited this bike with this funny looking stem. Is this broken? How do I inflate it?
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1answer
63 views

Innertube patch don't seal for long

I'm quite new at biking and I got my first flat yesterday. I was able to remove the inner tube and patch it, thanks to a lot of youtube videos. But today I found the tire without pressure. And I found ...
0
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1answer
109 views

Tube slowly loses air

A few weeks ago I noticed that my bike tube slowly leaked out air over the course of a day or 2. I bought a new tube and it does the same thing. I checked in water and saw no leaks.
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1answer
85 views

New innertube won't inflate when in the tyre

I'm replacing my inner tube after getting a flat. When I inflate the tyre with the new tube in, it feels soft- even though the pump says the pressure is 100PSI. The tube inflates and holds its shape ...
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2answers
612 views

Help with replacement tire and tube for little girls bike

Good Morning, My 4 yr old received an old bike from one of the neighbors today, unfortunately both tires are flat and cracked and there may be damage to the inner tubes as well. I am not able to go ...
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2answers
213 views

What tube do I need to buy for a Cube SL Road Race Bike?

Sorry for such a newbie question but I truly am in need of some guidance to make sure I buy the right thing. I recently bought a Cube SL Road Race which I've been out on a few times, covering about ...
2
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1answer
241 views

Multiple double holed punctures on the rim side of tube

Got a new trainer tire, so I removed the regular tire and tube from the rear rim and replaced them with the special trainer tire and a thinner tube. When I plied the old deflated tube for storing, I ...
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1answer
59 views

I can't find a fat tire inner tube, any help would be appreciated

I am having trouble finding a fat tire inner tube 20" x 2.8 or 20" x 3.0 Please let me know if you have any idea where I can buy one or can you point me in the right direction. thank you.
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1answer
2k views

Can one use a 26“ tube in a 27.5” tire or a 27.5“ tube in a 29” tire?

I upgraded my bike but have a bunch of old tubes lying around. Can I use them?
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1answer
190 views

Inner tube size and can you feel the slime in inner tubes?

I have a bmx bike with the tire size being 20" x 2.4. Will a 20" x 1.5- 2.125 fit or should I get a 20" x 1.7 - 2.25 instead. If I get a slime inner tube will it be noticable on the weight or just a ...
5
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1answer
3k views

What is the difference between SV17 and SV19 bicycle tubes?

I know that "SV" is short for "Sclaverand valve" and this page shows a really nice schema for the difference between AV / SV / DV. Especially the diameter of the valve seems to be set by AV / SV /DV. ...
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1answer
143 views

How safe is to use 700x25-32C tube on a 32C tire?

I know this question begs a clear "of course" answer. But is there any drawbacks stretching the tube to its maximal proportions provided by manufacturer? Are tubes even more elastic/stretchy so using ...
0
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1answer
31 views

Inner tube lengh

I have a load of inner tubes that are bigger than the wheel and tyre in lengh, I had a puncture in the part of the inner tube that was folded inside the tyre, will this puncture again ? Is it ...
2
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2answers
238 views

How did my inner tube get folded in a Z inside the tire?

My rear tire was keep going flat while riding, so I felt around the tire for any punctures or abnormal ‘signs’ that may be causing the problem. One area felt too thick, and at first, I thought I just ...
2
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0answers
36 views

Tire Durability [duplicate]

I bike a lot but I live in a neighborhood where there are a lot of sharp foreign objects on the ground. My bike's inner tube pops way too often for it to be practical to bike anymore and I don't want ...
6
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3answers
828 views

Type of permitted folding bikes on London trains & Tube?

I have found quite a bit of information about taking folding bikes on trains and the Tube in London. Specifically it says you can take a folding bike pretty much anywhere. However, having examined ...
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3answers
92 views

Bike patch glue help

So I popped my tire manualing down a curb and I went to patch it but I didn’t seem to have any glue left in my old tube of glue, so I went to the bike store and bought a new thing patch kit(cheaper to ...
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1answer
355 views

Hybrid bike inner tube size

The following images shows the tyre sizes of my hybrid bike. I need to buy an inner tube with presta valve. I can't seem to figure out which size I should buy though. Can someone please point me to ...
2
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1answer
658 views

Can you fix a tube with a lighter?

I was thinking about a patching tiny puncture I got from a metal sliver in the road. I usually don't even attempt to patch tubes, I always carry a spare, put that on and recycle the tube and forget ...
0
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1answer
339 views

Install tube sealant, Schrader?

I have normal tube sealant that I want to install in my bicycle's tubes. My bicycle's tubes have Schrader valves. Will someone here please provide total-noob friendly instructions on how to do what ...
0
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0answers
34 views

Motobecane 1970's version

I have a 1970's Motobecane bicycle with 27x1 tires. I need new tires and tubes. What would be the best size to fit, as I cannot find an exact match?
1
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1answer
783 views

Pros and cons of using 20-25mm inner tube in a 32mm tire?

I'm using 700x32mm Maxxis Detonator tires on my hybrid road bike. Although it is possible to find wider inner tubes that could fit better that tire, the 20-25mm ones are popular and available to buy ...
3
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2answers
127 views

Tube is abraded in tire

I've faced a strange issue with inner rear tube. It is Schwalbe Little Big Ben tyres 700x38C and Schwalbe tubes. After 20km (12.5 miles) riding tube was abraded by tyre at opposite side of valve. It ...

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