Race Ready IRS
HSD Racing was formed in
the early 1990s. From the beginning, HSD has been developing
Independent Rear Suspension (IRS) for racing.
versions of the IRS Suzuki LT250R
1995 Dirt Wheels / Over The Bars
1996 3&4 Wheel Action Magazine.
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
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.
August 2000 Internet
write up to date
REAR SUSPENSION (IRS) quad
HSD wants to hear from you.