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
Freeride E-XC
  • Drive Type: Chain
  • Front Tire Size: 2.75-21
  • Rear Tire Size: 120/90-18
  • Spark Plug: BR7ES
  • Front Sprocket/Pulley Teeth: 12
  • Rear Sprocket/Pulley Teeth: 48
  • Battery: YTX4L-BS
For reference only, please consult your owner’s manual to confirm your sizes
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  • K778 Rear Knarly 120/90-19  Tire
    exact fit
    5.0 star rating (1)
    $111.10
    Free Same Day Shipping
    Part #: 644428 Mfg Part #: 04778182002

  • Rear K657 Challenger 120/90H-18 Blackwall Tire
    exact fit
    4.4 star rating (156)
    $79.88
    Same Day Shipping
    Part #: 641304 Mfg Part #: 046571812C1

Viewing Results 1 - 2 of 2