The FOX 1.5 ZERO Quick Switch (QS) shocks are the next generation of lightweight mountain sled suspension technology. Ride harder in the backcountry with less fatigue without a compromise of durability. Experience a new sense of control on top of the snow due to less outboard weight.
FOX’s QS technology allows you to adjust the compression and rebound damping with ease to suit the conditions. Three positions keep the adjustment simple, so you focus on the ride instead of counting clicks. The rear track is recalibrated to compensate for recommended higher rate torsion springs.
We designed the mountain shocks with two primary objectives: weight reduction and ride performance. FOX optimizes the 1.5 ZERO torsion-sprung shocks through material reduction without a sacrifice of ride quality or structural integrity. The shocks maintain a linear feel regardless of temperature fluctuation, which keeps your sled setup quick and simple.
FOX’s position-sensitive damping technology, with origins in desert truck racing, is now applied to the Factory Race Series torsion-sprung shocks. Spiral grooves inside the shock allow the oil to flow around the main piston reducing damping force in the ride zone for a plush feel. The bypass grooves terminate through the final 30% of the travel, forcing oil to only flow through the main piston and providing a significant increase of bottom-out resistance to cushion any hard hits. Our goal was to inspire confidence next time you send it big thanks to the extra support.
Maximize the power-to-weight ratio of your sled by bolting on FOX’s new mountain shocks.
Adjustments Spring preload
QS3 – 3 position compression (track front and rear)
QSR – 3 position rebound (track front)
Features Optimized lightweight spring & shock design
Spiral groove bypass
FOX Ice Scraper Technology (FIST)
One-piece, aluminum spherical bearings
High-flow velocity-sensitive damping
Fully re-buildable and re-valvable
Front Track Extended Length 14.280
Front Track Compressed Length 9.640
Front Track Travel 4.640
Rear Track Extended Length 18.110
Rear Track Compressed Length 11.130
Rear Track Travel 6.580
Air Spring Pressures Front Track Main – 35psi
Top Mount Eyelet
Bottom Mount Eyelet
Rebuild P/n FT – 803-01-572; RT – 803-01-571