QSL - Quick Switch Lockout
Position 1 is soft compression rate
Position 2 is medium compression rate
Position 3 is locks the compression valving

Users can lock out the rear shock’s stroke to keep the front end down on steep climbs. But, if a hard hit smacks the shock, a bypass valve will open and let the suspension travel up into the tunnel to prevent harming the rails. This remarkable shock represents the first time you’ll actively adjust your shocks to suit the riding conditions (without removing your gloves). Top-of-the-line FOX quality is apparent. The FOX ZERO QSL is a premium coil-over shock boasting a forged aluminum reservoir.

Calibrated for mountain performance riding
Adjustable spring preload
Fully rebuildable and revalveable
Ultra quick, super simple shock adjustability is now a reality thanks to the new FOX QSL shocks
A 3-position adjustment knob located on the remote reservoir allows instant compression tuning for riding conditions and/or intensity
Patented FOX Ice Scraper Technology eliminates moisture from entering the shock by scraping off snow and ice before it ever interfaces with the seals
Center to center extended length is 17.0"
This shock comes stock on 2020-2024 M Hardcore, 2021-2024 Riot X, and 2026 HCR models
Compatible with 2703-502, 3704-785, or 4704-036 spring (Sold separately)
Includes 1 shock and spring retainer only - Does NOT include spring, bolts, nuts, or bushings

Fits Models:

2026 HCR 858 154"
2026 HCX 858 146"
2019-2024 M Alpha One 146", 154", 165"
2024-2026 M 600, 858 Catalyst Alpha One 146", 154", 165"
2021-2024 Riot X Alpha One 146"
(Excludes 2025-2026 400 & 2020-2026 Riot)

Country Cat is an Arctic Cat, E-Z-GO, Kawasaki, and Textron off Road dealer that opened it's doors in November 1991.  We started small and over the years have grown to become one of the largest powersports dealers in the United States.  We believe this success has been attributed to living by the motto: "Commitment to Service, Passion for Excellence."