how to measure

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall.

The aspect ratio is the height of the tire sidewall. A smaller number means a lower profile, and the height-to-width ratio is shown as a percent.

Rim diameter is the diameter of the rim/wheel on which the tire will be mounted, in inches.

tire width
tire aspect ratio
rim diameter
1991 BMW
K75
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  • Rear D606 130/90R-17 Tire
    Ride Specific
    4.8 star rating (49)
    $137.99
    Free Shipping
    Part #: 540386 Mfg Part #: 45162297

  • Front D404 100/90H-18 Blackwall Tire
    Ride Specific
    4.6 star rating (499)
    $107.99
    Free Shipping
    Part #: 542531 Mfg Part #: 45605299

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