All the features you can expect out of a Factory Race Series Track Kit, now with the functionality of an electronic lockout. With the simple click of a button mounted to the handlebar, QSE technology will enable your rear track shock to "lock out" giving you the support and geometry you have been asking for big climbs and deep days. A single wire is all that is needed to be routed from your handlebar to the rear track. 

Our QSE Track kits feature lighter, smaller rifle-bored bodies and an all new look for 2025.

FOX 1.5 QS3 Float track kits are the next generation of mountain sled suspension technology. QS3 allows you to adjust the compression damping with ease to suit the conditions. Three positions keep the adjustments simple and can easily be adjusted with gloves on. 

The rear track now offers a true lockout setting, QSL, allowing riders to fully lock out at a flick of a switch. This kit is tuned in partnership with Chris Burandt. Ride harder in the back country with less fatigue, without compromising durability. Experience a new sense of control.

With input from our Backcountry Team, the new FOX lightweight mountain shocks improved ride quality is as significant as their weight savings. While it may seem like a stretch, this technology has trickled down from our trophy truck engineering successes. Simply put, we’ve freed the shock to move comfortably by using internal grooves to bypass oil around the piston in the ride zone while providing increased bottom-out resistance for those big hits by eliminating the grooves in the last 30% of travel. This provides the plushness to ride all day with the control you need for maximum fun. Our objective? Retain that great FOX ride feel while increasing bottom-out control, especially in coil-over shock applications.

The combination of the main air spring and the Evol air chamber results in an incredibly progressive feel. This means a plush compliant ride over the bumps and ruts while soaking up the biggest jumps and drops without bottoming. Couple this with the simple to adjust QS3 switch and you can go from powder carves to rough trail with the flip of a switch. No more fumbling with tiny iced up knobs and tiny adjustments you can't feel; the Quick Switch technology makes adjustment simple and clear. The positions represent real changes a rider can feel for easy-to-understand setting adjustments. Large background numbering makes it easy to see which position you are in. The QS3 tech is the perfect match for the mountain snowmobilers needs from novice to expert.