Single Adjustable (Rebound)
Single adjustable shocks are an economical alternative to the full double adjustable design. The Single adjustment gives you the ability to adjust rebound dampening control without affecting the compression dampening characteristics of the shock. The rebound adjustment is the most critical in tuning a drag racing set-up. This adjustment allows the tuner to dial in the "unloading action" of the chassis and keep the tires planted during the critical first 60' down the track.
Double Adjustable (Rebound & Compression)
Double adjustable shocks are the ultimate tool in the chassis tuner's arsenal. The Double adjustments of both compression and rebound dampening are completely independent - changing the setting of one has no effect on the setting of the other. By allowing full control over both compression and rebound forces, this shock gives the tuner the ability to fine tune every aspect of chassis movement to provide the ultimate in acceleration control and overall driveability.