Summing Up The 2021 Ski-Doo Summits: Summit X With Expert Package

February 2020 Feature

Ski-Doo Summit riders understand there’s little that compares to the deep snow riding experience. Effortlessly carving through powder bowls, snaking through tight tree lines or highmarking uncharted terrain, there’s no experience on earth quite like what one feels from behind the bars of a Summit.

What makes the Ski-Doo Summit experience unlike any other on snow? It begins with the REV Gen4 platform. So responsive, a simple glance is all it takes to point it in the rider’s desired direction. Powered by equally responsive Rotax 2-stroke engines, there’s no deep-snow snowmobile that understands the relationship between rider, sled and epic terrain better than the Summit.

And in 2021, BRP engineers continue what they started this past winter with the world’s first factory-produced 2-stroke turbocharged engine in the 850 E-TEC Turbo. Riders can enjoy every ounce of power from the industry’s leading 2-stroke engine to its fullest, all the way up to 8,000 feet. They continue to enjoy a 40-hp advantage over non-turbo 850s from that altitude up on the way to discovering stunning new winter playgrounds.

More than a new engine, it’s a complete lightweight, turbocharged package fully designed by Rotax. With no turbo lag, it keeps the same instant response from the 850 E-TEC that riders have fallen in love with. In addition to delivering all its power at half the weight of leading aftermarket turbo kits, the optimized layout keeps the sled balanced side-to-side. Available on the Summit X and Summit X with Expert Package, the 850 E-TEC Turbo option also comes standard with a new one-piece lightweight hood.

New to the Summit X with Expert Package in 2021 is the lightweight one-piece hood and the inclusion of a 175-inch track option. Riders will also find it easier to move about the sled with a new ultra-low seat designed to promote even easier side-to-side rider movements.

The X model buyers will be delighted to see Expert Package features migrate their way, like the new abbreviated tunnel design for ultimate deep-snow mobility. Updated ski spindle and stopper greatly improve sidehill consistency on the X as well, plus, smaller handlebars and weather-resistant compact seat give a boost to the sled’s overall rider-friendly ergonomics.

The naturally aspirated Rotax 850 E-TEC is available in all three Summit model trims, while 600R E-TEC can be found in the Summit SP. Those SP buyers will see a host of upgrades with the likes of a new gauge, updated smaller diameter handlebars and revised ski spindle and ski stopper giving all deep-snow enthusiasts the perfect Summit options to consider.

As deep snow sleds continue to grow more popular in lower elevations, BRP is again offering two calibrations for the drivetrain on Summit X and Expert package models (only); one for high altitude, above 4,000 feet, and a sea level calibration for those who ride below 4000 feet.

New For 2021

  • Summit X with Expert Package 175
  • One-piece lightweight hood (all Expert and X with 850 E-TEC Turbo)
  • 4.5-inch digital gauge
  • Ultra-compact lightweight seat (Expert)
  • Lightweight seat (X)
  • New color options

2021 Summit Packages







REV Gen4

Dedicated deep-snow sled with features sharpened for technical terrain riding.



REV Gen4

A dynamic deep-snow machine with BRP’s high performance features and style.


REV Gen4

An excellent deep-snow machine for any rider.

2021 Summit X With Expert Package

Deep snow riders delight in finding new zones, taking on more intense terrain and simply riding the deepest powder possible. The Summit X with Expert Package delivered a whole new way for them to do winter when it was launched in model year 2020. For its second year encore, the Expert package again delivers an entirely new way to discover even more of what winter has to offer.

Specially designed and built by BRP engineers with input directly from Ski-Doo Brand Ambassadors to take on the most technical terrain and deepest of days, the Summit X with Expert Package shattered the deep snow sled mold with finely tuned attention to detail. Obvious features like the short tunnel design instantly get riders dreaming of bottomless snow. A ski spindle and stopper design that emphasizes sidehill consistency makes a rider envision conquering the tightest of technical tree lines. With it all built upon the industry’s most responsive platform in the REV Gen4, riders can take it all on with utmost confidence knowing almost anything is possible.

Pushing the boundaries of what’s possible goes even farther in 2021 with the inclusion of the recently introduced Rotax 850 E-TEC Turbo engine and a new 175-inch track option. The first 2-stroke turbo engine to come from a factory ensures full use of the 850 E-TEC’s 165 ponies up to 8,000 feet and continues to deliver a 40-hp advantage over other naturally aspirated 2-stroke engines as riders continue the climb. It maintains industry-leading throttle response with zero turbo lag giving riders ultimate control. Its lightweight design comes in at half the weight of typical aftermarket turbo kits and is perfectly balanced in the chassis.

Further refinements like the one-piece lightweight hood, ultra-compact weather resistant seat, new gauge and additional track options, plus updated clutch cooling make the 2021 Summit X with Expert Package a deep snow riders paradise behind bars.


REV Gen4 platform: The open design of the REV Gen4 mountain platform allows riders to ride freely with their own style, attacking terrain as it suits them instead of the sled. Designed to be the most agile, responsive sled in the mountains, the side-to-side centralized mass creates a sled that’s ultra-responsive to rider input, making it easy to initiate sidehill and carving maneuvers even in the most technical terrain.


tMotion rear suspension: The tMotion is both extremely agile and ultra-responsive to rider input. A simple shift in rider weight is all it takes for the sled move in the desired direction. A swiveling rear arm and split front arm allow the skid frame to flex laterally for easier roll up into a sidehill or carve. Rising-rate motion ratio adds capacity to handle big drops and comfort when riding the trail to get to the mountain. Standard adjustable limiter strap gives riders quick, easy choices in ride dynamics.

HPG Plus/KYB Pro 36 rear shocks: High quality KYB lightweight rebuildable high pressure gas shock in center. Kashima-coated KYB Pro 36 R rear shock with easy adjust knob for extreme capability.

RAS 3 front suspension: Precise, predictable handling and outstanding bump absorption, even in harsh conditions, with state-of-the-art unequal length A-arm front suspension.

HPG Plus front shocks: Highest quality Kashima coated KYB lightweight rebuildable high pressure gas shocks front. Rebuildable and revalvable.

Key Features

Short Tunnel: Shorter tunnel length allows for optimal maneuverability in deep snow. Standard rear lightweight snowflap with LinQ-ready attachment points.

SHOT engine starting technology. Push-button starting with nearly no added weight. After an initial pull-start, the engine charges an ultracapacitor. Pushing the handlebar SHOT button for subsequent starts uses that stored energy to turn the magneto into an electric motor that turns the crank. E-TEC technology then fires the engine to start. Eliminates nearly 20 lbs./9 kg compared to conventional electric start.

Narrow, adjustable ski stance: Effortlessly roll the sled on edge with a 35.7 inch (91 cm) standard stance. Stable cornering on trails with the chassis’ low center of gravity. Stance can be easily widened to 37.4 inches (95 cm).

Lightweight ski spindle: Lightweight alloy spindle with revised geometry to reduce ski drag and improve predictability in technical sidehills.

Pilot DS 3 skis: Precise control to easily hold sidehills in a ski specifically designed to work in tandem with the deeper and longer tracks. The Pilot DS 3 skis are a variation of the well-received Pilot DS 2 with a 12mm deeper keel offering an industry-exclusive removable ski tip extension: ride with it in deep dry snow conditions for flotation, ride without in crusty conditions to minimize tip-up.

Track options:

NEW 154x16x2.5 inch (391 x 41 x 6.35 cm)

154x16x3.0 inch (391 x 41 x 7.63 cm)

165x16x3.0 inch (420 x 41 x 7.63 cm)

NEW 175x16x3.0 inch (444 x 41 x 7.63 cm)

PowderMax Light with FlexEdge track: Climb with authority thanks to the 3.5 inch (9 cm) pitch that not only reduces weight but increases performance by keeping more snow between the lugs for better traction and keeps the sled on top of the snow. Strong yet lightweight lug design combined with the 3.5 pitch helps further reduce overall weight. Exclusive 16-inch (41-cm) wide design adds flotation and traction without sacrificing maneuverability.

Ice Scratchers: Rail-mounted scratchers provide additional snow/ice spray for cooling in icy and hardpack conditions. Reverse-capable.

Tunnel design: More freedom for the rider to move thanks to the beveled shape allowing for narrow tank and seat. Open rear cap design eliminates drag in deep snow. Heat exchanger is integrated using cutting-edge friction stir welding manufacturing process for greater heat transfer, added strength and less weight.

pDrive primary clutch: Fast and friction-free dual rollers transfer torque in place of traditional sliding buttons on this clutch. Oversized rollers with needle bearings, wide based flyweights and a shaft-on-shaft design emphasize smooth operation and long life. Ultra-responsive shifting, impressive rpm consistency, lightweight and maintenance-free. Fixed sheave is finned to circulate more air and is paired with the new CVT cover that delivers better air flow and cooling.

Drive belt: PBO material and design enhanced drive belt durability in deep snow.

NEW Drive Belt Monitoring System: Alerts riders in two different ways, duty cycle and temperature if drive belt issues are impending before failure. Allows rider to be proactive to prevent belt failure.

NEW QRS Vent Plus driven clutch: Finned fixed and moving sheaves maximize airflow of the CVT system to decrease overall operating temperature and offer consistent performance.

Brembo disc brake: Hydraulic system from the world leader in brakes and X-exclusive racing-style pads provide powerful, fade-resistant stopping power. Steel-braided line.

Ergo-Step side panels: More comfort thanks to the ergonomic design of the rear section of the panels shaped to support the rider’s shins on downhills. Narrow profile and shape at bottom minimizes “paneling out” in sidehilling. Bottom pan is shaped for flotation in carving and sidehilling.

Limiter strap adjuster: Quickly and easily change limiter strap settings for terrain or conditions without crawling under the sled.

Profile II running boards: Rigid full-length extruded aluminum grid-style design with 60 percent wider openings for exceptional snow evacuation and three times more grip flat foot positioning for comfort and control, plus a 1 lb. weight reduction.

Open toe-hold: True freedom to choose. Enables rider to naturally and freely adjust footing on the running board. Optional toe-hold accessories available to customize the fit for all styles.

NEW Ultra Compact Lightweight Seat: Compact, low profile and ultra-lightweight—25mm less height and 400g less weight than Compact Lightweight Seat. Intentionally sculpted for easier side-to-side rider movement. Weather-resistant to remain dry and lightweight throughout the years.

NEW 4.5-inch digital display: All-digital LCD gauge with flatter viewing angle for an easy-to-read info center while standing.

Mountain Light handlebar controls: Even more compact design for no interference with the rider. Warmer switches on console. RER reverse button further shielded.

Small diameter handlebar and grips. Tapered bar ends and new grip design for improved rider comfort.

NEW One-piece Lightweight Hood: One-piece polypropylene construction reduces weight by 6 lbs. Optimized for heat management and noise reduction.

Low mountain strap: Lower strap height keeps it out of the way while riding or reading the gauge.

4.7 inch/120 mm riser block

Flexible handguards: Semi-rigid design for increased hand protection. Flexible enough to avoid breaking when rolling the sled or riding in tight trees.

Rotax Electronic Reverse (RER): A simple push of a button reverses the sled—by reversing the direction of the engine. Adds nearly zero weight.

RF DESS Key: Ball-and-socket design with embedded radio frequency microchip ensures solid connection.

Accessory-ready: Designed from the factory for easy installation of more than 150 Ski-Doo accessories for the REV Gen4 platform, including LinQ cargo system, skid plates, side panel vents, auxiliary LED light, GPS receiver, 1+1 seating system, alternative windshields and more.

Rotax Engine

NEW Rotax 850 E-TEC Turbo engine: The first-ever factory-built 2-stroke turbocharged engine in any industry. The Rotax designed and built turbo provides full 165 horsepower from the industry’s strongest 850 twin up to 8,000 feet of elevation and remains a constant 40 horsepower more above that mark compared with normally aspirated 850s. Sophisticated design integrates flawlessly with the REV Gen4 platform for ideal balance at minimal weight. Ultra-impressive power, instant response with no lag, and factory reliability from a turbocharged 2-stroke only the industry’s leading manufacturer could develop and stand behind it.

Rotax 850 E-TEC engine: The next generation of the most advanced direct-injection two-stroke engine technology. This powerful twin delivers an exhilarating experience with 165 horsepower and 30 percent quicker response. The power comes instantly and forcefully. Fuel and oil economy remain impressive. Designed for reliability and durability with proven 4-stroke and long-lasting automotive engine technologies.

Color Choices

NEW Ultimate Steel Black Metallic with panel wrap: Painted hood, supreme look and finish, maximum protection.

NEW Ultimate Catalyst Gray/Lava Red/Black with panel wrap: Supreme look and finish, maximum protection.

Spring Option

Sea-level calibration: For riding below 4,000 feet (1,220 m) in elevation (850 E-TEC only)

Why Choose Summit X With Expert Package Over Summit X?

  • Stiffer shock calibration
  • Kashima-coated front shocks with lightweight springs
  • Standard Limiter Strap Adjuster
  • Standard Ultra Compact Lightweight seat
  • Standard flexible handguards
  • 175-inch track option
  • Ultimate colorations/graphics
  • Lightweight one-piece hood on 850 E-TEC
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