26 inch tubes in 650b tyres

sandy771
sandy771 Posts: 368
edited September 2014 in MTB general
Given that (I understand) 650b's are really only about 27 inch is there really a need for 650b tubes. I am assuming that I'll probably get away with a 26" tube. If so then I'll only need one spare in my camelback and not need to worry about having the right tube depending on the bike I take out.

Thoughts?

Comments

  • cooldad
    cooldad Posts: 32,599
    Makes sense to me.
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  • rockmonkeysc
    rockmonkeysc Posts: 14,774
    We put a 26" tube in a 650b wheel on a group ride a while back, it's still in there.
    It wasn't even a tight fit when we put it in.
    I have also fitted a 29er tube in my 26" wheel before. A bit tricky to get in but once inflated you wouldn't know the difference. It got me home at least.
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  • benpinnick
    benpinnick Posts: 4,148
    All tubes are interchangeable but 650 is the most useful for all sizes.

    650 is about 27.5 btw ;)
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  • The Rookie
    The Rookie Posts: 27,812
    It may be about 27.5, but if you think a 26 is a 26, than 650B IS 27.

    A friend built a 36er and uses 29er tubes in that as 36er tubes are about 1/2kg.

    Inflate a tube out the tyre and watch it grow, a 26 tube will be fine in a 650B
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  • kammybear
    kammybear Posts: 500
    Someone gave me a 26" tube in an emergency 3 months ago...still there!

    So I stocked up on some when they were on sale. £2 each :D

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