Ordinary or light tubes

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izumi
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Ordinary or light tubes

Postby izumi » Tue May 21, 2013 21:25 pm

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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nicklouse
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Re: Ordinary or light tubes

Postby nicklouse » Tue May 21, 2013 21:27 pm

does nothing to the tyre.

why would you want to change?
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izumi
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Re: Ordinary or light tubes

Postby izumi » Tue May 21, 2013 22:31 pm

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?

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cooldad
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Re: Ordinary or light tubes

Postby cooldad » Tue May 21, 2013 23:20 pm

Depends how big and where.
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nicklouse
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Re: Ordinary or light tubes

Postby nicklouse » Tue May 21, 2013 23:28 pm

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.
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Thelonegroover
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Re: Ordinary or light tubes

Postby Thelonegroover » Wed May 22, 2013 06:53 am

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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izumi
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Re: Ordinary or light tubes

Postby izumi » Fri May 24, 2013 11:09 am

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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