HSD Racing was formed in
the early 1990s. From the beginning, HSD has been developing
Independent Rear Suspension (IRS) for racing.
Early
versions of the IRS Suzuki LT250R
were
featured in-
September
1995 Dirt Wheels / Over The Bars
February
1996 3&4 Wheel Action Magazine.
(Now
4-Wheel ATV Action)
...Three years later
in the June 1999 ATV Sport Magazine you can see how the same LT250R
evolved into a high-speed well handling ATV with advanced zero-roll
suspension geometry.
In
the summer of 1999 the IRS quad's zero-roll A-arm suspension received
(2) pairs of PEP ZPS Zero Preload System shocks. Triple rate fronts
-and- Dual rate rears.
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