only contact a vehicle has with the road is each tire's contact
patch. A tire's contact patch provides traction and responsiveness
when accelerating, braking and cornering forces are generated
for vehicular control. Because many dynamic performance demands
are placed on a tire, interaction between a tire and the wheel
on which it is mounted is critical. Proper choice of both tire
and wheel is necessary to achieve efficient transmission of braking,
accelerating, and cornering forces through the drive train and
Calculate aspect ratio. Divide the
tire's section height by its section width.
For the increase in section
width, multiply 0.2" by the corresponding five increments for
a total of 1.0." Adding that to the original section width results
in a new measurement of approximately 11.2".
Because the overall diameter
of a radial is determined by its belts, this tire's overall diameter
should remain virtually unchanged.