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germanmarc
TPI does not really matter that much. While, in general, finer fibres could allow a tyre to be made lighter, stronger and more flexible its all too often used as a marketing specification (like clock rate and number of cores in PCs). Those 300+ TPI tyres are not really 300 TPI but multi layer and they are counting them all. Finer fibres too is not really the answer. And even with the same fine fibres higher density means "more stiff".. So even looking at a single layer it also not as simple as "more is better".. Is ultrafine nylon really better than silk? Silk better than cotton? Can be but must not be.. A number of higher end tyres on the market have lower TPI counts than some of these and yet are more supple, lighter and stronger.. The Conti Olympic, for example, is "only" 220 TPI. And FMB Setas.... So TPI? Does not tell much of the story...