Shock Part Number Compressed Length Extended Length
Recommended
Spring Length
(Free Length)
ALN3855B/ALN3855P 8 5/8" 11 ¼" 9 ¾"-10 ½" 7"
ALN4855B/ALN4855P 10 1/8" 14 ¼" 12" -12 ½" 9"/10"
ALN5855B/ALN5855P 11 ¼" 16 ¼" 13 ¼"-14¼" 12"
DD/DS/US/RS301, 302 9 ½" 12 5/8" 9 ½" -10" 7"
DD/DS/US/RS303, 304 8 5/8" 11 1/8" 10 ¾"-11 ¼" 7"/8"/9"
DD/DS/US/RS401, 402 10 1/8" 14" 11 ¼"-12 ½" 9"/10"
DD/DS/US/RS403, 404 11 1/8" 15" 12 ½"-13 ¼" 10"
DD/DS/US/RS501, 502 11 5/8" 17" 13 ¼"-14 ½" 12"
DD/DS/US601, 602 12 ½" 18 ¾" 15 ¼" -15 ¾" 14"
DD/DS/RS701, 702 13" 19 ½" 16"- 16 ¾" 14"
DD/DS/RS901, 902 15" 23 ¾" 18 ½" -19 ½" 14"
Note: RS shocks cannot be used as coil-over shocks
Shock Valving Adjustments
QA1 shocks have 18 damping settings per knob. There are 6 clicks per revolution of each knob, and each knob has 3
complete revolutions. The knob set fully counter clockwise is the softest setting - start your adjustments from that point.
Recommended base settings to begin testing with are as follows:
Front Shock Valving Adjustments
Shocks with one adjuster knob:
Shocks with two adjuster knobs:
Firm ride & improved handling:
Rear Shock Valving Adjustments
Shocks with one adjuster knob:
Shocks with two adjuster knobs:
Firm ride & improved handling:
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