Progressive 512-1023B PGR 512 Shocks chemical-transmission-gear-oil The first-ever performance stud for

The first-ever performance stud for single-ply tracks

usually reserved for more expensive track day helmets

Reed Stops: Newly designed reedstops to increase reed petal stability for a controlled reed petal opening

1999 Ski-Doo Formula Z 500

heavy duty ramp with a long tongue and non-slip rubber pad

Progressive 512-1023B PGR 512 Shocks chemical-transmission-gear-oil The first-ever performance stud forThe 512 Series was the first aftermarket shock made specifically for Utility ATV's. They have undergone extensive R&D to provide the finest possible suspension for your workhorse vehicle. We use improved spring rates for heavier load stability and handling over rough terrain as well as increased length for more travel and ground clearance. The 512 Series comes with an adjustable spring preload to accommodate different loads (i. e. mounting a plow or