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Tube sizes

Old 06-13-11, 06:25 PM
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Tube sizes

I need new tubes for both of my bikes. How do I determine the sizes I need? Is it the same as the tire size? I've heard some folks even say the size doesn't really matter.

Some advice, please?
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Old 06-13-11, 06:28 PM
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What are your tire sizes?
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Old 06-13-11, 06:34 PM
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Originally Posted by 10 Wheels
What are your tire sizes?
I'm not sure about my Schwinn (Its currently at my Dad's house and I don't know the sizes) but my Browning road bike reads (32-630) 27 x 1 1/4 on the sidewall.
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Old 06-13-11, 06:40 PM
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This chart should help.
https://www.schwalbetires.com/bike_tires/tubes
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Old 06-13-11, 07:11 PM
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Originally Posted by 10 Wheels
So could I use a size close? I would order from this website directly, but it's a little expensive compared to other prices I've seen.
Would I be okay to use a size within the same block in this chart?
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Old 06-13-11, 07:42 PM
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The tube's diameter needs to be the same as the tire, like a 27" for a 27". But it's OK for the tube's cross-section to be slightly smaller than the tire, like a 1 1/8" for a 1 1/4". The tube will stretch to fit the tire. Avoid a tube that has a larger cross-section than the tire, this can cause wrinkles in the tube and make it hard to mount the tube without serious problems.
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Old 06-13-11, 07:50 PM
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Schwalbe tubes are indeed expensive. Try something cheaper.
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Old 06-13-11, 07:52 PM
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https://www.pricepoint.com/detail/174...--Set-of-5.htm
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Old 06-13-11, 08:03 PM
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Thanks everyone! You've been really helpful.
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