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

1
vote
Bike tyre sizing is a horrible mess. Your wheel is a 700c - that means the diameter of the whole wheel. you have to get a tube that is a 700. The second number on the tube relates to the width of t …
answered Jul 24 '16 by Criggie
9
votes
More careful buffing - the ribs stop the sandpaper/scratcher from getting into the butyl rubber and exposing raw rubber, so the vulcanising agent can't work so good. You don't need to buff the ribs …
answered Sep 17 '17 by Criggie
2
votes
Yes - the inner tube width and length should match the tyre in which they are installed, within the posted width range. A mismatch works as a temporary get-you-home bodge but is not recommended for l …
answered Oct 5 '19 by Criggie
4
votes
I see three possible locations on the tube that could match your description. On the outside (rolling face) and 38mm across the inflated tube from the valve. On the outside, but 180 degrees away fro …
answered Aug 4 '19 by Criggie
2
votes
Patches are simply rubber with some vulcanising agent pre-applied. The differences between cheap knockoffs and quality patches are exactly that - quality control. Of your 48 patches, some number mig …
answered Nov 19 '16 by Criggie
3
votes
Honestly? Sounds like crap. Here's what proper tyre sealants look like in action: The latex mix is pushed through a hole and as it passes to the lower atmospheric pressure, the liquid comes out a …
answered Jan 4 '17 by Criggie
6
votes
My last 26" tube cost $8 NZ, so not a lot. Depends how much time you want to invest, and how much patches cost. Poor abrading/sanding/scouring ot the area before applying the rubber cement will leav …
answered Oct 8 '15 by Criggie
4
votes
If its unopened you might be able to take it back to the shop and swap for the right size, but the difference between 2.125" and 2.175" is 0.05" which is only 2.3 % smaller so it would probably work f …
answered Aug 16 '17 by Criggie
4
votes
They'll be fine - I'd certainly use them without question in a 23mm tyre. Most tubes cover a range like 18-25 and 25-38. Given 23 and 25 are in the same range I'd expect it to work correctly. If yo …
answered Feb 18 '19 by Criggie
1
vote
The things that will make your `bent more puncture resistant are Not riding on or through things that give punctures (not always possible) Higher tyre pressures Thicker tyres - just more rubber on t …
answered Dec 5 '15 by Criggie
0
votes
I carry patched ones as spares. I store them purged of air and roll/folded up till the length is the same as my toolbag, then a wrap of masking tape to hold them together. The toolbag is a flat grel …
answered Dec 8 '15 by Criggie
2
votes
I made a tool to do this. I get a lot of punctures so end up patching about twice a month. I carry 2 spare tube and last-resort stickers, so I patch in the comfort of home not on the side of the r …
answered Aug 18 '19 by Criggie
0
votes
I'm guessing you have the sidewall of the tyre inflating sideways, and not the tube inflating through the valve stem hole. Generally this is a failure of the tyre bead, and its no longer seating prop …
answered Oct 1 '17 by Criggie
1
vote
I'm going out on a limb and suspect you have removed the end nut and have pushed the valve core down into the tube to allow the sealant liquid room to move past and into the tube ? Short answer is …
answered Jul 20 '16 by Criggie
1
vote
Probably fine - if you're really worried, buy new inner tubes and carry one of those bigger ones as your spare. Remember you're talking about 3 mm in size, in something made of rubber that Even if …
answered May 29 '15 by Criggie

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