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  1. #1
    Senior Member Surferbruce's Avatar
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    proper tube size for 35c tire

    so my axis has 35c irc mythos tires. the guy at the lbs gave me 28/32c tube as a spare. well, got my first flat today on this bike and the punctured tube i removed was a skinny 18/25c tube. not sure if the skinny tube is from the factory or put on by the lbs during assembly, but what's the deal? what size tubes should i be running in a 35c cross tire? on a recent off road ride i went down to about 40psi front and back but flatted today on the road at 75psi.

  2. #2
    Direct Hit Not Required BlastRadius's Avatar
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    Nov 2003
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    San Bruno, CA
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    Pinarello Galileo, Bianchi Alloro, Guerciotti Cross Force, Iron Horse Hollowpoint MKIII
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    I run 18/25c tubes in my 32 tires mainly because they're the only ones I can find with long enough stems to fit through the 27mm deep rims. I'm about 130# so even running at 75psi doesn't give me problems. If you're a big guy, you might want to switch the tubes to the thicker 28/32 tubes if you're going to run at high pressures.

  3. #3
    Member
    Join Date
    Oct 2004
    Location
    Portland Oregon
    My Bikes
    Litespeed Arenberg, Litespeed Atlas, Fuji Track, Trek Fuel 90, Felt S32 TT bike, Bianchi Axis '05, and a lot of older bikes...
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    Michelin just came out with a cross specific tube. Here's some information:

    Michelin tubes

    I'm going to try these after buying an '05 axis and finding the same thing- dinky tubes flat easily.

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