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inner tube to tyre match

Old 11-24-16, 07:00 AM
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helijohn
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inner tube to tyre match

Currently I have 20 x 1.75 tyres fitted and I fancy fitting some 20 x 2.2125. I have no idea of the inner tube size that is fitted but I am assuming it is 1.75/2.125 width. So I am wondering if I will need a new tube for the 20 x 2.2125 tyres.
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Old 11-24-16, 07:04 AM
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Tubes expand when aired up.

Try it. It should be fine.
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Old 11-24-16, 07:12 AM
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Yup, no problem, with that slight difference.

I would avoid trying to put a big tube in a smaller tire.
Or a tiny tube in a huge tire.
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Old 11-24-16, 07:16 AM
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Originally Posted by Homebrew01 View Post
Yup, no problem, with that slight difference.

I would avoid trying to put a big tube in a smaller tire.
Or a tiny tube in a huge tire.
Depends what tiny/huge etc. means. lol
I rather fancy the tyre and it is fairly cheap but for a little more I can go 2.125 (slightly smaller) and not have the concern about the tube. My concern is the tube may have been on the bike for 8 years and not like being pumped up.
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Old 11-24-16, 07:21 AM
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Try it. Should be fine.
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Old 11-24-16, 09:48 AM
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Heavy duty Thorn resistant, start out with more rubber in them , so remain relatively thicker as they expand..

+ they are thicker on the tread side than the rim side..
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