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  1. #1
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    Inner tube size question

    I have a Fuji bicycle that the inner tubes have started leaking. I read stamped on the tire: 37-622 (700 x 35C - 29 x 1 5/8 x 1 3/8)

    I have found a tube at Wal-mart labeled: 700cx35/38/45 C A/V 35mm Tube (Schrader Valve) (2 Tubes)

    Although I hate Wal-mart, will this work?

  2. #2
    Galveston County Texas 10 Wheels's Avatar
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    That will work just dandy..

    Do you use schrader valve tubes?

    f31c349153ff911b_valves.jpg
    Last edited by 10 Wheels; 08-17-12 at 12:22 PM.
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  3. #3
    Mechanic/Tourist
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    If the smallest number listed after the x on the replacement (35 in this case) is the same or slightly smaller than the same number on the original you should have no problems at all.

    ...but NEVER just throw in new tubes withiout determining why the old ones are leakiing -they don't really "wear out."
    There's no such thing as a routine repair.

    Don't tell me what "should" be - either it is, it isn't, or do something about it.

    If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

    Please take the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!

  4. #4
    Senior Member Delmarva's Avatar
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    Quote Originally Posted by fotonut View Post
    I have a Fuji bicycle that the inner tubes have started leaking. I read stamped on the tire: 37-622 (700 x 35C - 29 x 1 5/8 x 1 3/8)

    I have found a tube at Wal-mart labeled: 700cx35/38/45 C A/V 35mm Tube (Schrader Valve) (2 Tubes)

    Although I hate Wal-mart, will this work?
    Before you start replacing tubes lets determine how much of a problem there is. For both tubes to suddenly start leaking is very unusual. All bike tires lose air and it is not uncommon to lose 10psi is a few days. How much are the tubes deflating and over what time does it occur.

    Another consideration is that if you haven't successfully replaced tubes before then please look at one of the Youtube videos and read up on how to do it. Also you will need a set of tire levers...not screwdrivers.

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