Inner Tube Question

Discussion in 'Tech Area' started by Waveraider, Jan 26, 2015.

  1. Waveraider

    Waveraider Member

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    I just picked up a TaoTao CT70 Clone that has the little 3.50-10 tires and I'm going to put on 120/90-10's. Can I use the tubes that came out of the 3.50 tires, or should I get bigger ones?
     
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  3. Enginedoctor

    Enginedoctor Well-Known Member

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    i've bought a few tubes that were 10-3.5/4.0. i mostly recall finding them in the wheelbarrow section. you could push the tube the other .5 inch if you want. it's stretchy.
    if you wanna be a stickler you could get different ones, but i (personally) wouldn't bother. i'm no tire expert.
     
  4. racerx

    racerx Administrator
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    Pretty much all available tubes are labeled 3.50-4.00x10. .500" of additional, overall, width, translates into a minimal amount of circumferential expansion. In the real world, a 4.00" section width tire is equivalent to 100mm and a "3.50-4.00x10" tube can easily be used with a 130 section width tire. Printed sizes are nominal, not actual; they (the manufacturers) have to call them something that allows customers to know what to buy. Like the `Doc said, inner tubes are not a high-precision science.
     

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