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Reply #11: Its the contact area that determines rolling resistance [View All]

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Home » Discuss » Topic Forums » Environment/Energy

bhikkhu

(1000+ posts) Send PM | Profile | Ignore

Sun Jun-01-08 01:21 AM
Response to Reply #10

11. Its the contact area that determines rolling resistance

A well inflated tire has a smaller contact area, as does a narrow tire. The modern propensity for wide low profile tire maximizes contact for the sake of cornering performance, etc, in vehicles that have no earthly use for such performance.

If you are thinking about low profile tires or wide tires, keep in mind that the opposite is better for mileage. The old style narrow high-profile tires were better, and still are an option for most cars. Check the load ranges and diameters for best fit, and any good tire dealer should be able to advise (though they make more $ selling low-profiles).

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