15"or 16's

[tarkus]

I believe you can find articles about it online. As a ťyre rolls, the part in contact with the road flattens and the sidewall near that point deforms. As the wheel turns, the point of deformation moves around the sidewall causing significant rolling resistance. The taller the sidewall, the bigger the size of the deformation and hence the increased rolling resistance.

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[Exiwolfman]

Originally Posted by tarkus

I believe you can find articles about it online. As a ťyre rolls, the part in contact with the road flattens and the sidewall near that point deforms. As the wheel turns, the point of deformation moves around the sidewall causing significant rolling resistance. The taller the sidewall, the bigger the size of the deformation and hence the increased rolling resistance.

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I can see this to work with low pro and narrow tire, keeping the tire contact patch same size with little deformity as possible.

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[tarkus]

Originally Posted by Exiwolfman

I can see this to work with low pro and narrow tire, keeping the tire contact patch same size with little deformity as possible.

It's the main scientific reason that sports cars use low profile tyres. The cool look is an added bonus.


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