2021 Polaris® 850 RMK KHAOS QD2 165 2.75"Agile and Ultra Responsive on All-Mountain TerrainDiscover RMK KHAOS 165The Perfect All-Mountain SledFeatures may include:All-Mountain ArchitectureThe most agile mountain sled - ever. Designed for all riding zones for a lively and dynamic backcountry experience.AXYS ChassisThe raised AXYS chassis increases clearance and reduces drag to keep you on top of the snow. It is purpose-built for mountain riding and allows for faster and easier climbing and instantaneous lift to pop onto the snow faster. The aluminum over structure is lightweight and durable for all types of riding.Patriot 850 EngineBuilt to integrate seamlessly with the lightweight and agile Polaris chassis, Liberty engines feature class-leading power-to-weight ratios and set a new benchmark for ultimate performance with our complete line-up of powerful options.Rider Balanced ControlThe AXYS platform features Rider Balanced positioning that delivers ultimate control for the rider for effortless riding.PRO-RMK React Front SuspensionThe PRO-RMK React Suspension provides riders with the most effortless ride in the deep snow. Experience less fatigue with the most predictable ride. It includes a 36"-38" stance, a sway bar designed for predictable handling, and forged a-arms and spindles optimized for strength and durability.WER® Velocity Hi-Lo ShocksThe RMK KHAOS 165 comes with premium WER® Velocity Shocks for the best of the best in various mountain conditions. These have been proven in hillclimb dominance.Immediate ResponseThe most agile all-mountain sled comes standard with WER Velocity Hi-Lo for the best of the best in various mountain conditions. Plus, the light and rigid design of the KHAOS Rear Suspension improves weight transfer for more control to deliver more power directly to the snow.New SnowCheck Exclusive QuickDrive2 (QD2)Introducing the all-new, SnowCheck Exclusive, low-inertia QuickDrive2 (QD2). QuickDrive is the lightest drive system in the industry and produces the lowest inertia for maximum flickability. QD2 boasts a 10% gear reduction for even quicker response and track speed. The system has been optimized for both 2.75” and 3” track lug heights.New SnowCheck Exclusive Series 8 TrackThe all-new, SnowCheck exclusive, lightweight Series 8 track features a 3.5” pitch and optimized 2.75” lug for less mass and reduced inertia resulting in quicker response, instantaneous lift and optimum flotation for the ultimate in all-mountain performance.PRO-Lite SeatMountain snowmobiling requires a different seat design and that is what Polaris delivers. The PRO-Lite seat is shorter to allow you to easily swing a leg over from one side of the snowmobile to the other.LED LightsAll models built on the AXYS platform feature standard LED headlights to deliver the industry's best lighting that is 80% brighter than incandescent lighting.MessageCenter GaugeInformative and easy to read, this gauge keeps a rider aware of sled operating conditions and provides a wealth of additional data.