Tyre Mounting
Mounting Instructions
All Hoosier tyres having directional arrows must be mounted so that the
tire travels in the direction of the arrow. Hoosier tyres having directional
arrows will have them on both sidewalls. Directional arrows may not be
on a tyre that can have both a left and/or right side application.
All Hoosier tyres not having directional arrows should be mounted as detailed
on next page.
Every Hoosier race tyre has a four character serial code embossed into
ONE sidewall of the tyre. All Hoosier DOT tyres will also have two additional
codes as required by the Department of Transportation. (Example: J7AB
4AX8 3701)
CIRCLE TRACK RACING TYRES
(Includes both dirt and asphalt tires)
Hoosier tires must be mounted with the serial code located toward the
infield.
ROAD RACING TYRES
(Includes catalog numbers beginning with 43, 44, (excluding 44WET), and
bias-ply lead #45)
In most cases, Hoosier tyres used in Road Race applications should be
mounted with the serial code toward the center of the vehicle. Once a
tyre has been run in the proper orientation it is acceptable to remount
the tyre in the opposite direction to even out the wear.
ROAD RACING RADIAL TYRES
(Applies only to radial DOT #45 catalog numbers)
The P-Metric radials are symmetrical in construction, but asymmetrical
in tread design. The sidewall indicates that the tire should be mounted
- this side out - however there are situations that would be better mounted
reversed. There are no restrictions for mounting these tyres in either
direction. These tyres can be flipped on the rim at any time to even out
the wear and increase tyre life.
ROAD RACING RADIAL RAIN TYRES
(Applies only to lead #44 radial wets)
The radial WET tyres currently available have an asymmetrical tread design.
They must be ordered in -left- and -right- configurations. Disregard the
mounting instruction that is molded into the sidewall of the tyres. The
correct mounting instructions are to mount the right side tyres with the
serial code inboard, and the left side tyres with the serial code outboard.
To verify the correct orientation on the car, when viewed from above the
tread chevrons should be pointing rearward, with the -v- pointing forward
on the inboard half of the tyre. It is important to note that the mounting
instruction that is molded into the sidewall of the tyre will be incorrect
for the left side tyres.
DRAG RACING TYRES, INCLUDING DOT DRAG TYRES
(Includes catalog numbers beginning with 17, 18, 19)
Hoosier drag tyres can be mounted to rotate in either direction. Hoosier
drag tyres can also be flipped or reversed to provide even wear.
WARNING
All tyre changing should be done by trained personnel using proper tools
and procedures. Failure to follow safe mounting procedures could cause
faulty positioning of the tyre and cause assembly to burst with explosive
force sufficient enough to cause serious personal injury or death. Never
attempt to install and inflate a tyre of one diameter on a rim or wheel
of another diameter. All Hoosier racing tyres are designed to be used
on wheels or rims that are manufactured to Tire and Rim Association
specifications and tolerances.
VERIFY CORRECT WHEEL AND BEAD FLANGE
All tyres are designed to be used on wheels that are manufactured to Tire
and Rim Association (T&RA) specifications and tolerances. Some rims
are non-standard or damaged and it is necessary to inspect the rim flange
to assure proper fit. Consult your specific rim manufacturer to determine
if your rim can be used in this application. Use of Hoosier Racing Tires
on wheels that do not meet T&RA standards can cause the assembly
to fail and burst with explosive force sufficient to cause serious personal
injury or death.
MOUNTING/INFLATION
Clean rim, lubricate rim and beads with rubber lubricant. Install valve
core. ALWAYS lock wheel on mounting machine or place in safety cage
and use extension gauge and hose with clip-on air chuck. STAND BACK.
NEVER exceed 40 PSI to seat beads. After beads are seated, adjust to
recommended inflation. See tyre sidewalls for additional safety warnings.