WHAT IS IT? The STI Tech 2 MXC rear tire is an
110/90-19 intermediate-terrain tire designed to be a
performance tire at an affordable price.
WHAT’S IT COST? $87.51.
CONTACT? www.stitireandwheel..com or
your local dealer.
WHAT STANDS OUT? Here’s a list of things that
stand out with the STI Tech 2 MXC rear tire.
(1) Weight. The STI Tech 2 MXC 110/90-19 is not
the lightest rubber on the market, but it is not the
heaviest. Compared to the Dunlop Geomax MX51 rear,
the STI rear is a 1/2-pound heavier. This is about the
same as the weight difference between a stock tube and
a heavy-duty tube. The 1/2-pound is not a deal-breaker,
because different brands and models of tires can vary
by as much as 2 pounds in the same size.
( 2) Mounting. The MXA wrecking crew was
pleased when we mounted the STI Tech 2 MXC. It is an
intermediate tire by design but has a more pliable bead
and sidewall than a Dunlop MX51, which made the tire
much easier to install.
( 3) Performance. Every MXA test rider was
impressed with the straight-line traction of the STI
rubber. From soft to hard terrain, the STI hooked
up great when accelerating. The tire also tracked
well through ruts and loose berms, but lost some
consistency when flat tracking it across hard terrain.
There was enough knob flex to make the rear end float
when loaded from the side. We tested 12, 12. 5, 13 and
13. 5 psi. We got the best traction with 12 psi but opted
for more pressure to help support the side knobs in terrain
that was harder than pure intermediate dirt.
Our STI 110/90-19 was 1/4-inch narrower than a
comparable Dunlop MX51. This downsizing allowed us to
run the 110/90-19 on our 250F without an issue. On a
450 four-stroke, the 110-19 worked fine, but we would
recommend running STI’s 120 rear (because it is closer in
size to a normal 110).
( 4) Durability. Given the low price, we thought the STI
Tech 2 MXC would either wear out on the first ride or last
a lifetime. Lo and behold, we were wrong. The tread wore
evenly and lasted much longer than expected. In our
experience, the STI rear lasts longer than a Dunlop MX51.
The knobs stayed intact, and no suspect wear was spotted.
( 5) Value. The low price isn’t the only thing the STI
rear tire has going for it. It is a viable option for a rider
on a budget.
WHAT’S THE SQUAWK? This is an intermediate-terrain
tire, thus it has tall knobs. When you push those tall
knobs on the hard side of the intermediate equation, the
rear can break loose.
This rear tire is a steal for the price. It is a low-
STI TECH 2 MXC REAR TIRE
cost tire with better-than-average performance.
MXA TEAM TESTED