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Thread: tyre TPI count

  1. #1
    Bike Hoarder NikZak's Avatar
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    tyre TPI count

    just a curiosity thing, what does the TPI rating on a tyre really mean?

    i understand that it refers to the number of thread count per square inch of tyre (is this even right?) but in real world riding terms what is the difference?


    are some more compliant or faster than others or is it a strength/weight thing?
    Did you poop at that stop back there? I didn't pay $300 on brakes that save 150g to have you carrying around 600g of breakfast all day
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    I don't know, but Sheldon does:

    The higher the TPI number, the thinner and more flexible the tire fabric is. Thin-wall (high TPI) tires tend to be lighter and have lower rolling resistance, but they're more easily damaged by road hazards.

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    i know that my 290tpi (and now 320tpi) vittorias are absolutely the most supple, comfortable clinchers i have ever ridden (note: i did not say durable). with latex tubes, they are (almost) comparable to the best tubulars. i have ridden a *lot* of different tires.
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    I rode 320tpi open corsa CXs with latex tubes for about 35 miles. They were the best feeling 35 miles ever. Then the rear got slit open and rendered the tire unusable and that was that

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    Bike Hoarder NikZak's Avatar
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    so roughly what i can gather is higher tpi = fragile but suppler?
    Did you poop at that stop back there? I didn't pay $300 on brakes that save 150g to have you carrying around 600g of breakfast all day
    Quote Originally Posted by dsh View Post
    Get a brake, hipster.

  6. #6
    Senior Member rustybrown's Avatar
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    Just think sheets.

    Hotel sheets get a lot of use. But they feel scuzzy.

    My fancy high TPI sheets get a lot of use. With the ladies and all.

    I spend a lot of time shopping for new sheets.

    And a lot of money.

    But the ride is nice.

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    Fresh Garbage hairnet's Avatar
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    Just buy a set of racing tires and experience it
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    I'd rather ride a greasy bowling ball than one of those things.
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    Bike Hoarder NikZak's Avatar
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    yeah the reason i ask is i want new tyres for my bike (currently have kenda koncepts in 23c) trying to decide whether to go for 23c race tyres or go to 28c for a bit more comfort... but if higher tpi = better comfort then i might go for some high tpi race tyres in 23 width
    Did you poop at that stop back there? I didn't pay $300 on brakes that save 150g to have you carrying around 600g of breakfast all day
    Quote Originally Posted by dsh View Post
    Get a brake, hipster.

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