13-8
Consumer information and Reporting safety defects/Tire information
wall. . Vehicle maximum load on the tire
. Test rim Load on an individual tire that is
determined by distributing to each
axle its share of the maximum
loaded vehicle weight and dividing
by two.
The rim on which a tire is fitted for
testing, and it may be any rim listed
as appropriate for use with that tire.
. Tread
That portion of a tire that comes into
contact with the road.
. Vehicle normal load on the tire
. Treadwear indicators (TWI) Load on an individual tire that is
determined by distributing to each
axle its share of the curb weight,
accessory weight, and normal oc-
cupant weight (distributed in accor-
dance with Table 1 that is appended
to the end of this section) and
dividing by 2.
The projections within the principal
grooves designed to give a visual
indication of the degrees of wear of
the tread. The fixture used to hold the wheel
and tire assembly securely during
testing.
. Tread rib
A tread section running circumfer-
entially around a tire.
. Tread separation
Pulling away of the tread from the
tire carcass.
. Vehicle capacity weight
The rated cargo and luggage load
plus 150 lbs (68 kg) times the
vehicle’s designated seating capa-
city.
. Wheel-holding fixture