Firestone Mid-range SZ90
noise and comfort: only 20 % measured incomplete measurement: comfort from noise only, no wear measurement, wet from braking and handling only 
Which sizes it's made in
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Price comparison across shops
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How the Firestone SZ90 evaluated
noise and comfort: only 20 % measured incomplete measurement: comfort from noise only, no wear measurement, wet from braking and handling only 
wear not measured 
last test 2017 
Wet Breakdown „Wet“
Dry Breakdown „Dry“
Economy Breakdown „Economy“
Noise and comfort Breakdown „Noise and comfort“
Wet worse than 70 % Customer reviews are not part of PTI – PTI is based on measurements from independent tests; for tyres with few tests it also partly considers the brand's class.
Technical information
Focus: Sport
With sport tyres, grip in every situation is what decides — under hard acceleration, under braking, in the dry and in the wet. Firestone SZ90 belongs to this group. Stability at higher speeds and precision through corners come on top of that. One thing drivers often underestimate when buying: grip comes from a softer compound, and a softer compound wears faster. Where a standard tyre covers roughly 40,000 km, a sport tyre manages about 20,000 to 30,000 km — and considerably less with a sharper driving style or a heavier, more powerful car.
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Competitors
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How the price has evolved
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