A Tyre Rolling Circumference is the length of one complete rotation of the the Tyre’s outer circumference or treaded area when carrying a typical load at the recommended inflation pressure.

The Tyres Rolling Road Circumference will be altered by many different aspects here are few examples of what would effect it:

  • Tyre Pressures.
  • Vehicle unladen Weight.
  • Vehicle laden Weight.
  • Towing. (Ball weight of towed item)
  • Amount of tread remaining on tyre.