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
2017 KTM
RC 390
For reference only, please consult your owner’s manual to confirm your sizes
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  • Rear Sportmax Q5 150/60ZR17Tire
    exact fit
    New!
    $314.95
    Free Same Day Shipping
    Part #: 1F5A3Q Mfg Part #: 45247183

  • Front Sportmax Q5S 110/70ZR17Tire
    exact fit
    $205.99
    Free Same Day Shipping
    Part #: 546663 Mfg Part #: 45258201

  • Front Mutant 110/70ZR17 Tire
    exact fit
    New!
    $210.99
    Free Same Day Shipping
    Part #: 546429 Mfg Part #: 45255205

Viewing Results 1 - 3 of 3