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Ordinary or light tubes

izumiizumi Posts: 15
edited May 2013 in MTB workshop & tech
How does a tube weight affect the sturdiness of a tyre? I have Schwalbe Smart Sam 2.25 tyres with light Impac AV14 tubes (about 120g each). Is there any sense in installing ordinary tubes instead (about 200g each) or will I just increase the weight of my bike?

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  • nicklousenicklouse Posts: 50,675 Lives Here
    does nothing to the tyre.

    why would you want to change?
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  • izumiizumi Posts: 15
    Thanks for clarifying that. I got a puncture a week ago, I thought that maybe thickier tubes can make tyres more resistant to punctures.

    By the way, I have a related question. How long can I keep a tyre with a small puncture from a sharp stone? Will this puncture get bigger with the passage of time?
  • cooldadcooldad Posts: 32,599
    Depends how big and where.
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  • nicklousenicklouse Posts: 50,675 Lives Here
    izumi wrote:
    Thanks for clarifying that. I got a puncture a week ago, I thought that maybe thickier tubes can make tyres more resistant to punctures.

    By the way, I have a related question. How long can I keep a tyre with a small puncture from a sharp stone? Will this puncture get bigger with the passage of time?
    A hole in th tyre has little relevance to anything. It is the tube that holds the air in.

    And maybe.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
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  • thelonegrooverthelonegroover Posts: 1,073
    In my experience, a thorn or nail can go through a normal tube very easily. So fitting lighter tubes should make no difference. Pinch flats may be different but since I’ve never had one I can’t say. I’m actually planning to install extra light tubes which save almost 100g per wheel and also install sealant, which will add up to 50g per wheel. Result is a lighter wheel with puncture prevention.
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  • izumiizumi Posts: 15
    Thelonegroover wrote:
    In my experience, a thorn or nail can go through a normal tube very easily. So fitting lighter tubes should make no difference.
    Ok, thanks!
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