Penske Racing Shocks 8975-DRAG - Manual (Page 12)

PS-8975-DRAG (Double Adjustable) 2010/2011
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Track Tuning (GENERAL):
Compression Adjuster:
This adjuster is typically used when looking to improve the bike over bumps. If the bike is hitting a
certain bump that is causing it to “unload” the tire, simply soften the compression adjustment. This will
allow the shock to absorb the bump, keeping the bike more stable and making it more controllable.
Closing the compression will slow the weight transfer of the bike.
Rebound Adjuster:
The rebound adjuster is a great tool for tuning and is a more rider-sensitive adjustment than
compression damping. To slow how quickly the bike is pitching forward, simply close off the rebound.
This will delay weight transfer, keeping the back planted longer.
Important!! It is possible to over-adjust. Always have a baseline to go back to!!!
Normal Adjustment Steps for Drag Racing:
Compression: Adjust 4-5 clicks at a time.
Rebound: Adjust 2-4 clicks at a time.
To Increase Bite:
Soften compression or stiffen rebound. Example: Hot and greasy track / bald spots on starting line.
To Decrease Bite:
Stiffen compression or soften rebound. Example: Track conditions are at their best / starting line is
covered with good rubber.
When using a pneumatic (air) bleed-off option: As each bike and track is different, it is recommended to
consult a Penske Racing Shocks technician for help with the setting of timers and other air bleed-off
mechanisms.