Penske Racing Shocks 7300 Series - Manual (Page 13)

Piston Selection
This two stage piston combines the low
shaft speed characteristics of a linear
piston with the blow off characteristic of
a digressive piston at higher shaft speeds.
Both parts of the curve are independently
tunable.
COMPRESSION
REBOUND
The Variable Bleed Piston offers the user
more versatility than any other piston in
our range. The piston can produce curves
like those found on linear, digressive and
VDP pistons and offers a very flexible
way of controlling bleed.
Velocity Dependent/Velocity Dependent
Velocity Dependent/Linear
Digressive/Digressive
Digressive/Linear
High Flow
Linear/Linear
Variable Bleed
Digressive Blow Off
Compression Face Rebound Face