Construction: 4 Ply Poly unless otherwise
All 12, 13,
15 inch Firestones are tubeless, except
where noted above.
are both DOT and ECE marked. ECE is the
certification for the European market.
PSI: See above chart.
Modern techniques dictate the use of post
inflation during the manufacturing process;
this may lead to the tires being slightly
larger than an original. Some fitment issues
can occur with spare tires wells,
side-mounts or continental kits. Static
balance with the weights on the inside of
the tire only in order to protect the soft
whitewall. This also gives a more pleasing
appearance. Recommend the use of lug centric
balancing over hub centric. Due to the
cosmetic whitewall insert these tires may
take 3 to 5 ounces to balance, this is
the USA. The whitewalls, redlines and redlines
are molded into the tire, not added on after
the tires are made.
Many of the
Firestone whitewalls have raised lettering
on them. Since the whitewall cannot be
buffed smooth due to the lettering, the tire
will have mould vent marks in the whitewall;
this is normal and NOT a warranty issue.
measurements are non-scientific and may
change with different rim widths.
bias and radials on the same vehicle because
the vehicle may steer uncontrollably.
Old rims can
often be out-of-round and should be
carefully checked before mounting.