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Spring preload adjustment can be used to fine tune sag, but preload does not change spring
rate and is not a substitute for the proper coil spring weight.
If the proper sag cannot be acheived after external preload adjustment, the coil spring
assembly must be replaced with a softer or firmer spring.
To increase sag, install a softer coil spring assembly.
To decrease sag, install a firmer coil spring assembly.
Repeat the sag process until your target sag percentage is achieved.
External spring preload adjustment
compresses or decompresses the spring
without initiating travel.
Turn the preload adjuster knob clockwise to
increase spring preload and decrease sag.
Turn the preload adjuster knob counter-
clockwise to decrease spring preload and
increase sag.
Adjust