NEXT-GEN BODY PANELS: Arctic Cat’s Next-Gen body panels are designed to seamlessly cut through the air with as little atmospheric tension as possible. With only a quarter-turn of the two quick-release tabs, the side panel comes off and provides easy access to the engine compartment for general maintenance. 6000 C-TEC2 ENGINE WITH DSI: This 599 cc 2-stroke DSI is the unmodified version of the engine that’s been launching Team Arctic down the racetrack since 2012. This quick-revving, 125-class horsepower C-TEC2™ power mill is the product of a world-class engine assembly plant — ours. Whether you’re riding a ZR® an M or a Crossover, the 6000 is one of the most satisfying engines found in a snowmobile. PROCROSS - 5 & 6 SKIS: Exclusively on our ZR 6000 R XC, the ProCross™ 5 is our narrowest ski and is specifically built for speed. This ProCross™ 6 ski that comes standard on the ZR RR 137″, has excellent handling on hardpack snow and good flotation in loose snow. A stiff, deep keel provides positive cornering in all conditions. ARCTIC DRIVE SYSTEM: The Arctic Drive System features CVT drive and driven clutches for a combination of smooth shifting, optimal performance, maximum durability; great serviceability; and reduced weight. The new drive clutch features a roller bearing on the shaft that enables an auto-adjusting belt tension design and delivers consistent performance without manual adjustments. It also features a 12.5 percent lower effective starting ratio (while maintaining the top ratio) for smoother engagement and reduced belt wear at drive-away speed, with more evenly distributed force for lower belt pressure. It’s a design that’s unique to Arctic Cat.