Meet the 2027 Polaris ProStar S4 INDY® SP 137 in ****—a trail sled that looks like it’s already moving even when it’s parked. It’s the kind of machine that makes the last-minute forecast check feel like a formality, because once you’ve got a MATRYX aluminum frame under you and a RipSaw II track behind you, winter starts feeling less like a season and more like an invitation.



Under that sleek bodywork sits a **ProStar™** parallel-twin that brings **998cc** of liquid-cooled, **4-stroke** confidence to every squeeze of the thumb throttle. Fuel-injected and happy on **regular gas**, it’s built to fire up with the push of an **electric start** and settle into a smooth, ready-to-run attitude. Power flows through a **CVT** with belt drive, and when the trail narrows or the parking lot gets tight, **reverse** is there to keep things easy instead of awkward.



On-trail personality is where this INDY SP really shines. Up front, the **independent A-arm** suspension and MATRYX front end deliver **9.5 inches** of travel designed to keep the ride composed when the trail turns choppy. Out back, the **PRO-CC** rear suspension adds **16.2 inches** of travel, working with **Polaris IFP adjustable gas shocks** (front, center, and rear) so you can fine-tune feel as conditions change—because morning corduroy and afternoon bumps don’t ride the same.



The stance is planted and purposeful with a **42.5-inch** ski stance, and the **Pro-Steer™ composite skis** with **carbide** skags help the sled track predictably when you’re cruising long stretches or setting up for the next corner. When it’s time to rein it in, the **S4 Stealth** brake with a **hydraulic disc** rear setup brings controlled stopping power that feels reassuringly modern.



And then there’s the track: a **137-inch** RipSaw II, **15 inches** wide with **1-inch** lugs—an ideal recipe for trail days that include everything from hardpack to fresh, loose sections without feeling like you brought the wrong tool for the job. With an overall length of **120 inches**, a width of **47 inches**, and a mid-height, **tinted** windshield topped off by **LED** lighting, the sled looks streamlined and purposeful while still giving you the visibility and wind management you want when the miles add up.



Comfort details show up where they count. The **one-piece vinyl** seat keeps you planted for a spirited ride, while **heated, adjustable** driver grips and **hand guards** help keep your hands happy when the temperature drops and the pace stays up. Practical touches like a **belt guard**, **snow guard**, and **skid-resistant** running boards underline that this machine is built to be ridden—often and enthusiastically. And with gauge-based **fuel level** and **temperature** warnings, you’ll get the heads-up you want without the guesswork you don’t.



Finished in ****, this ProStar S4 INDY SP 137 doesn’t just blend into winter—it stands out in it. It’s a single-seat, trail-focused sled that feels eager at the first turn of the bars and ready for the next stretch of snow-covered horizon.