STI Holds on Tight in
Chris Umphrey drove this Tony’s
Toys RZR to first place in the White Knuckle
Obstacle Challenge, using STI Black Diamond
tires mounted on STI HD2 wheels. Must be early
in the race, since the car is so clean.
The White Knuckle Event (WKE) has been dubbed
“the Woodstock of ATV and SxS events.” After
recently attending this annual Memorial Day
weekend festival, we would find it difficult to
dispute the comparison. The only thing missing
was the naked hippies.
attendance estimates varied, one thing was
indisputable: there were a LOT of ATV/UTV fans
at this off-road festival.
STI rep Lee Dillehay finished
second in the White Knuckle Challenge, in a
Black Diamond-equipped RZR owned by Tony’s Toys.
reputedly doubled with every edition since its
inception six years ago. This time around a
crowd estimated at a ginormous 7,000 to 15,000
(depending on who you’re talking to) gathered at
the Brimstone Recreation Area near Huntsville,
Tennessee. This flood of off-road enthusiasts
was drawn to Brimstone’s lovely Cumberland
Mountains setting by the scenery, abundant
riding opportunities, a wide variety of fun
family activities, giveaways, contests and
numerous competitions, as well as concerts by
country crooners Chris Cagle and Laura-Bell
Bundy. In short, it was one big, hot, dirty and
totally groovy celebration of internal
The powersports industry
knows a good thing when it sees it and gives the
event considerable support. STI Tire & Wheel set
up camp in the vendor area and used the
opportunity to introduce the throng to the new
Silverback-XLite tire and HD Beadlock alloy
wheel. STI was also happy to provide two
complete sets of tires for drawings.
highlight for us was participating in the White
Knuckle Obstacle Challenge’s side-by-side class.
Using STI Black Diamond tires, Chris Umphrey of
Tony’s Toys won the event with a Polaris RZR 900
XP, while STI’s own Lee Dillehay finished in the
runner-up position with an RZR 800 — a one-two
We’ll be back, and you can bet
your sweet bippy that most of those in
attendance in 2012 will be too. Power to the
STI tires and wheels are
available at finer ATV/UTV dealers everywhere.
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