Draped in ****, this **2027 Polaris 850 RMK® SP 155** looks like it was built for riders who measure winter in elevation gain, not miles. It’s the kind of mountain sled that feels at home the moment the trail turns into a climb and the trees start getting close—light on its feet, eager to change direction, and ready to chase fresh lines until the sun drops behind the ridge.
At the heart of it is the **Patriot™** twin—an **840cc**, **2-cylinder**, **liquid-cooled** **2-stroke** with **reed valve** intake and **fuel injection**. It runs **gas/oil injected** and is happy on **regular fuel**, which is great news when the day’s plan involves topping off and disappearing into the backcountry. Tap the **electric start**, settle your thumb on the **thumb throttle**, and the sled’s personality shows up fast: crisp response, quick revs, and that unmistakable 2-stroke urgency that makes every clearing feel like an invitation.
Power delivery stays smooth and simple thanks to the **CVT** setup with **belt drive**, paired with a **P-85 / TEAM LWT clutch** combination that’s built to keep the engine in its happy place when the snow gets deep and the pitch gets steep. And when it’s time to regroup, back out of a tight spot, or re-aim for a better approach, **reverse** is there—because sometimes the smartest mountain move is the one that saves your energy for the next climb.
This RMK SP is built around the **MATRYX aluminum frame**, and you feel that purposeful mountain layout in everything from the rider position to how naturally it tips onto edge. With a **dry weight of 432 lb**, it’s eager to respond when you shift your body and ask it to carve. The stance is adjustable between **36" and 38"**, letting you tune how planted (or how playful) you want the front end to feel for the conditions you’re riding that day.
Up front, the **RMK® React™ independent A-arm** suspension delivers **9 inches of travel**, controlled by **Polaris IFP adjustable gas shocks** with **shock-mounted adjustment**. Out back, the RMK rear suspension brings **16 inches of travel** with **two rear shocks** plus a **center Polaris IFP adjustable gas shock**, giving you that balanced feel when you’re transferring weight, hopping over uneven snow, or staying composed when the terrain turns lumpy and unpredictable.
Of course, the main event is the track: a **Series 8** setup at **155" long**, **15" wide**, with a towering **2.75" lug height**—the kind of footprint that’s made for digging in, staying on top, and driving forward when the snow is soft and the hill says “no.” Steering comes via **ProTaper™ handlebars** with **manual steering**, giving you direct control and a connected feel when you’re threading through technical lines.
When it’s time to rein things in, the **RMK® hydraulic disc rear brake** is there with the kind of control you want on steep approaches and tight transitions. Practical touches are ready for real riding days too: **heated, adjustable driver grips**, **skid-resistant** running boards, a **belt guard**, and a **snow guard**—all working quietly in the background while you focus on the next turn.
The cockpit keeps it clear and functional with **LED lighting** (with a **tinted**, **low-height** setup), plus a **fuel level gauge** and a **temperature warning light**—small details that matter when the ride stretches long. And with an **11-gallon** fuel capacity, you’ve got the range to explore without constantly checking your plans against the nearest pump.
If you’re after a mountain sled that feels purpose-built—sharp, responsive, and ready to play in deep snow—the ** 2027 Polaris 850 RMK® SP 155** brings the attitude and the ability to make winter your favorite kind of terrain.
