Frequently Asked Questions

Circumference

Is the rolling distance from one point on the tyre for a complete revolution. So that the circumference relates to the tyre diameter. It has influence on the transmission ratio and the speedometer. With a lower tyre series (aspect ratio), this smaller circumference tyre has the tendency to a shorter transmission Acceleration is affected favorably, but at high speeds there is the possibility of staying in the tachometer's red zone. In addition this smaller tyre will make the speedometer read higher. Acceptable tolerances are from plus 1.5% to minus 2.5%. The larger deviations will have made ??a proportionately bigger change to the speedometer's reading.

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