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  1. #1
    vol
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    What inner tubes should I buy?

    My bike tires are Kenda K-192 w/Kshield 700x35c. I want to buy 1 or 2 inner tubes to carry while riding, just in case... What size/model should I look for? Thanks.

  2. #2
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    One to fit 700X35 tires, with a valve that maches your wheels. If you dont' know what that means, ride to your local bike store, and ask them to sell you a tube.

  3. #3
    vol
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    Quote Originally Posted by dscheidt View Post
    One to fit 700X35 tires, with a valve that maches your wheels. If you dont' know what that means, ride to your local bike store, and ask them to sell you a tube.
    I have the common schrader valve. I'm very far from my LBS, and would like to find it from online sellers.

    Edit: I found some online. Between 700 x 25-35, and 700 x 35-45, which is better to choose? (choose the narrower or wider one?)

    Also, do brands matter? Some are better quality than others? cheaper may not be reliable?
    Last edited by vol; 08-28-11 at 07:31 PM.

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    I've found I do better with tubes where the lower end of the range matches the tire, rather than the upper number. Based on that I suggest you look for SV tubes marked 700 x 35-45c or simiular, rather than 700 x 25-35c.

    Either will fit, as will anything that has a width range that includes 35mm. The advantage of going a bit larger is that the tuge won't be stretched as much when inflated. While it won't help with regular punctures, being stretched less seem to help prevent rim side leaks.

    As for brands, that's tougher because most of the brands you see are marketing brands, not the actual maker. Kenda for example does make tires and tubes under their own name, but also sells them to importers under their names. Companies like Trek put their names on tires and tubes made by companies like Kenda, but you have no way of knowing the actual maker or the quality.
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  5. #5
    vol
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    Thanks. I'll choose the relatively wider one, then. I see some reviews of Sunlite seem to be good.

  6. #6
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    one with the lower value of the tube matching your actual tire width,
    thicker is better, for air pressure loss over time..
    so if the tube doesn't have to expand a lot to fill the casing,
    that is better .
    what you get usually depends on who the importer/wholesale distributor is
    that your online retailer does business with..

    given cost of shipping is added to retail margins, get more than 1 or 2..

  7. #7
    vol
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    Thanks. I found this one. They also have "thorn resistant" type, which seems very strong, but the reviews also say they are much heavier and taking space. The shipping seems to be $4.99 for each item

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    Unless there's no bike shop near you, it probably doesn't make sense to buy tubes on the net. The shipping cost will eat up any potential savings. If you're buying other stuff you might save by adding tubes to the order, but otherwise it's a losing proposition.
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    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  9. #9
    vol
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    Yeah, that's probably the smart way to go, especially since I've never bought this before.

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