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
2002 Yamaha
XT225
  • Drive Type: Chain
  • Front Tire Size: 2.75-21
  • Rear Tire Size: 120/80-18
  • Chain Size: 428
  • Chain Links: 120
  • Front Sprocket/Pulley Teeth: 15
  • Rear Sprocket/Pulley Teeth: 45
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 K761 Dual Sport 120/80H-18 Tire
    exact fit
    4.6 star rating (11)
    $98.75
    Free Same Day Shipping
    Part #: 643550 Mfg Part #: 047611879B1

  • Rear K270 120/80P-18 Tire
    exact fit
    4.3 star rating (47)
    $79.75
    Part #: 642897 Mfg Part #: 042701806C1

Viewing Results 1 - 3 of 3