Head-to-head comparison · by the team at All-Terrain Motorsports, Grand Junction & Rifle CO · updated 2026-08-20
Stand at the Mesa Top trailhead on a February Saturday and count sleds: it's Summits and RMKs nearly all the way down the line, and their riders will happily argue the merits until the parking lot empties. We sell both brands, so here's the even-handed version.
Both platforms are brilliant in deep snow, and both offer factory turbos that keep full power at 10,000 feet — which matters enormously here, because the Grand Mesa's riding zones sit between 9,000 and 11,000 feet.
| Ski-Doo Summit | Polaris RMK | |
|---|---|---|
| Signature strength | Motor: 850 E-TEC / Turbo R | Chassis: lightest, flickable |
| Feels best | Powerful, planted, smooth | Effortless sidehilling |
| Turbo option | Yes — full power at altitude | Yes (Patriot Boost / 9R trims) |
| Local terrain fit | Grand Mesa open bowls | Trees and technical lines |
The broad consensus, which matches what our customers report: the Polaris RMK platform (especially in Pro and Khaos trims) is the lighter-feeling, most effortless sled to throw around — sidehilling and quick edge-to-edge transitions are its party trick. The Ski-Doo Summit with the Rotax 850 E-TEC — and the Turbo R at the top of the range — counters with arguably the strongest, smoothest factory motor in the segment and a chassis that's become dramatically more playful over recent generations.
A naturally aspirated 850 loses a meaningful chunk of its power by 10,000 feet. If you ride the Mesa or the San Juans regularly and can stretch the budget, the factory-turbo versions of either sled are transformative — full sea-level power in the thin air where you actually ride. If you mostly ride groomed trails and meadows, a non-turbo sled saves real money.
You genuinely can't buy wrong here — pick the dealer relationship and the ergonomics that fit you. Rough local rule: riders who live in the trees lean RMK, riders who love open bowls and big pulls lean Summit Turbo. We stock both all winter and service both year-round.
Ski-Doo Summit — 138 in stock from $5,879
Polaris RMK — 274 in stock from $9,999
Counts and prices update nightly from our live inventory. Website prices include freight & setup.
If you ride deep-snow zones at 9,000+ feet regularly, a factory turbo keeps the power you paid for — it's the single biggest upgrade for Grand Mesa riding. For groomed-trail riders it's optional.
Order in spring (snowcheck season) for exact spec, or buy in early fall from our in-stock units. By December the popular deep-snow trims are gone across the whole Western Slope.
The Grand Mesa is the crown jewel — hundreds of miles of groomed trails plus legendary off-trail zones, 45 minutes from our Grand Junction store. Sunlight, near our Rifle store, and the Flat Tops are also excellent.