Meet the ** 2027 Polaris 850 RMK® SPS 155 ES**—a purpose-built mountain sled that looks as sharp as it feels the moment you thumb the throttle. Finished in ****, it carries that clean, ready-to-ride attitude Polaris is known for, with a stance that says it’s here for steep lines, deep snow, and long days that somehow feel too short.
At the heart of the fun is the **840cc Patriot™** twin—**2-cylinder**, **liquid-cooled**, **2-stroke**, and **fuel injected**—built to respond instantly when the terrain stops being polite. It’s a **horizontal in-line** setup with **reed valves**, breathing through a **single exhaust**, and it runs on **regular fuel** with **gas/oil injection**, so you can focus on the ride instead of fussing over it. Hit the **electric start**, settle in, and you’re ready to chase the next untouched bowl. Power delivery stays smooth and efficient thanks to a **CVT transmission** with **belt drive**, matched to a **P-85 / TEAM LWT** clutch setup—ideal for that constant on-and-off rhythm of technical mountain riding. When the day calls for quick repositioning in tight spots, **reverse** is on your side.
The RMK® SPS 155 ES is built around the **MATRYX aluminum frame**, keeping things light and responsive with a **dry weight of 446 lbs**. The body panels are **plastic**, which helps keep the focus on function and durability. From the rider’s perspective, everything is placed with intent: the **driver floorboards** are **skid resistant**, the **rubber hand grips** feel secure, and the controls are classic and intuitive—**manual steering** with a **ProTaper™ handlebar** and a **thumb throttle** that begs for “one more hit” every time the trail opens up.
Up front, the sled rides on **independent A-arm suspension** with the **RMK® React™** system and **9 inches of travel**, tuned to help keep the skis composed when the snow gets choppy or the approach gets rough. The shocks are **Polaris IFP adjustable gas IFP** units with **shock-mounted adjustment**, giving you the ability to dial things in for the way you ride. Out back, you’ve got **16 inches of rear travel** with **two rear shocks**, plus a **center shock**, all **Polaris IFP adjustable gas IFP**—a setup that’s meant to stay predictable when you’re sidehilling, rolling into the throttle, or floating across the kind of snow that makes you forget your phone even exists.
And then there’s what really turns effort into elevation: the track. The **Series 8** track measures **155 inches long** and **15 inches wide**, with **2.75-inch lugs** designed to bite and lift when the powder is deep and the line is steep. Up front, **Gripper® skis** (plastic) paired with **carbide skags** keep steering feel precise when conditions change from fresh to tracked-out. Stance is adaptable too, with ski stance adjustable between **36 and 38 inches**, so you can tune your balance for stability or agility depending on the day’s mission.
Practical touches keep the ride comfortable and confident: **hydraulic disc rear braking** by **RMK®**, a **low tinted LED** light for visibility, a **fuel gauge** plus a **temperature warning light**, and **adjustable heated grips** for the driver—because cold hands have no place on a mountain day. There’s also an **11-gallon fuel capacity** to help stretch your range when the plan turns into “let’s see what’s over the next ridge.”
In ****, this 850 RMK® SPS 155 ES doesn’t just look ready—it rides like it’s been waiting all year for you to point it uphill and commit.
