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BackCountry 850 E-TEC®

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The most powerful 2-stroke engine in the industry.* It pumps out 10 more horsepower (165 hp) than its predecessor, but its responsiveness is what really shines. With the new pDrive primary clutch, it’s 30% quicker responding...

Model Data
  • 2019
  • Ski-Doo
  • Backcountry
  • 850 E-TEC®
  • New
  • 850 E-TEC®
  • Sauk Centre, Minnesota

The most powerful 2-stroke engine in the industry.* It pumps out 10 more horsepower (165 hp) than its predecessor, but its responsiveness is what really shines. With the new pDrive primary clutch, it’s 30% quicker responding than the 800R E-TEC giving you the instant control you demand. Following its big brother Rotax 850 E-TEC engine's lead with second generation E-TEC technology, the Rotax 600R E-TEC engine offers a 30% improvement in throttle response**, crisp acceleration and sets a new 600cc class standard with 125 horsepower* while continuing to set the bar for reliability, and 2-stroke oil and fuel economy. A major factor in the quickness of REV sleds is the new pDrive clutch. Fast and friction-free dual rollers transfer torque in place of traditional sliding buttons on this 100% clutch. The oversize rollers with needle bearings, wide flyweights and shaft-on-shaft design emphasize smooth operation and long life. Ultra-responsive shifting, impressive RPM consistency and 2.8 lb./ 1.3 kg lighter than the TRA VII. The 4th generation of the REV platform is designed around aggressive trail riders with a narrow, compact package giving the rider more freedom to move and influence the sled. More centralized masses (especially side-to-side), light weight and industry-leading suspensions make the vehicle ultra responsive. Crossover-specific suspension uses best principles of the rMotion trail and tMotion mountain skids for confident cornering and agile boondocking – such as rigid front and rear arms with excellent weight transfer. It also features a rising-rate motion ratio, like the latest generation of Ski-Doo rear suspensions, to provide superior control and comfort. Tipped rails enable better cornering, boost top-end speed and fuel efficiency. Unique geometry and steering on the RAS 3 for capability and light steering on and off trail. Optimized for crossover usage, two ski stance positions dial in handling: 40.1 in. (102 cm) or 38.4 in. (97.5 cm).  Enables rider to naturally pivot their outside foot outward in aggressive cornering. (Alternative toe holds available as accessories). Highest quality aluminum-bodied high pressure gas shocks by KYB. Rebuildable and revalvable. This track features combination of flexible cupped lugs for superior off-trail performance and more rigid lugs for added traction on hard-packed snow.

ROTAX® Engine 850 E-TEC®
Engine details Liquid-cooled, eRAVE™
Cylinders 2
Displacement 849 cc / 51.9 in.³
Bore 82 mm / 3.2 in.
Stroke 80.4 mm / 3.2 in.
Maximum engine speed 7,900 RPM
Carburation E-TEC direct injection with
additional booster injectors
Recommended fuel type Premium unleaded
Minimum octane 91
Fuel tank 36 L / 9.5 US gal
Oil tank capacity 3.4 L / 3.6 qt

 

Powertrain  
Drive clutch type pDrive™ with clickers
Driven clutch type QRS
Engagement 3,800 RPM
Small sprocket number of teeth 21
Large sprocket number of teeth 45
Drive sprocket number of teeth 8
Drive sprocket diameter 183 mm / 7.2 in.
Brake system Brembo brake with stainless-steel
braided brake line

 

Dry Weight 217 kg / 478 lb

 

Features  
Frame REV® Gen4
Bodywork Narrow design
Skins Pilot™ DS 2
Seating Trail performance
Handlebar U-shaped aluminum with J-hooks / Grab handle
Riser block height 120 mm / 4.7 in.
Starter Electric
Reverse RER™
Heated throttle lever/ grips Standard
Gauge Analog with display
Mirrors Optional
Windshield 430 mm / 17 in.
Runner Square 3/8
Carbide configuration 102 mm / 4 in. at 90°
Hitch Optional

 

 

Dimensions/ Capacities  
Vehicle overall length

3,110 mm / 122.4 in.

Vehicle overall width 1,140 to 1,180 mm / 44.9 to 46.5 in.
Vehicle overall height 1,347 mm / 53 in.
Ski stance

975 or 1,020 mm / 38.4 or 40.2 in.

Ski overall length 1,049 mm / 41.3 in.
Track nominal width 381 mm / 15 in.
Track nominal length 3,705 mm / 146 in.
Track profile height 40.6 mm / 1.6 in. Cobra

 

Suspension   
Front Suspension RAS™ 3
Front Shocks HPG™ Plus
Front suspension max. travel 220 mm / 8.7 in.
Rear Suspension cMotion™
Center shock HPG™
Rear Shocks HPG™
Rear suspension max. travel 239 mm / 9.4 in.

 

Advertised pricing excludes applicable taxes title and licensing, dealer set up, destination, reconditioning and are subject to change without notice. Pricing may exclude any added parts, accessories or installation unless otherwise noted. Sale prices include all applicable offers. Not all options listed available on pre-owned models. Contact dealer for details.