stock and ultra smooth. Any rock
under 6 inches tall that we ran over
you could barely feel. The bigger ones
deflected smoothly without offering
feedback through the steering wheel.
In the sand it was more of the same. In
our desert terrain the tires are much
better than the general-purpose stock
tires at holding a straight line. They
help the RZR follow in the ruts better
and rarely tried to climb out of them.
The larger-than-stock STI Chicane
RX tires still allow for a smooth and
comfortable ride. They are much
more predictable than the stockers
and have proven to have superior
puncture resistance. For a stock
or mildly modified car, the STI
Chicane RXs are a perfect choice.
Price as tested is $215. Contact STI at
STI CHICANE RX
A new tire for performance UTVs
By the staff of Dirt Wheels
❏ The UTV tire market is hot. Most
high-performance UTV owners are
choosing to increase their machine’s
tire size when switching to aftermarket
meats. The most popular size is 30
inches tall on either a 14- or 15-inch
wheel. So, this month we spent some
time with a new STI tire. STI has
been in the ATV game for years
and recently developed stronger
UTV-specific tires as well. STI’s latest
product is the Chicane RX. The eight-ply tire is available in a handful of
sizes that include 28/10-14, 30/10-14,
30/10-15 and 32/10-15, and they are all
non-directional DOT rated.
We tried 30x10-14s mounted on all
four corners on our Desert Edition
Polaris RZR. It’s a typical trail machine
with a few add-ons, like shocks, doors
and a cargo box. We drive most UTVs
in 4WD, and that’s what we did for
this test, and all the tires were inflated
to 20 psi. The Chicanes were mounted
on STI’s HD5 beadlock wheels.
On our test loop we found the
Chicanes were very predictable on
the loose dirt-covered hardpack. Front
turn-in traction was good, while the
rear tires would slide predictably. At
high speed, straight-line tracking was
perfect, and there was no wandering
or any unbalanced feeling.
We were very impressed at how
well the Chicanes took the ruts and
rocks when the terrain got rough.
Bump absorption was very close to
The STIs work very
well in all types of
terrain. They roll
smoothly and track
in the sand. Bump
absorption is great,
and so is puncture
The Chicane RX is
currently available in
four sizes: 28/10-14,
and 32/10-15, and
start at $165 each.
STI has a huge
selection of cool
wheels as well.