2021 Polaris 850 SKS 155 Factory Choice
2021 Polaris 850 SKS 155 Factory Choice

Specs

General Information

Manufacturer
Polaris
Polaris
Model Year
2021
2021
Model
850 SKS 155 Factory Choice
850 SKS 155 Factory Choice
Model Code
S21EFS8RS
S21EFS8RS
Color
Black Pearl / Indy Red
Black Pearl / Indy Red

Dimensions

Length
Overall - 131 in. (332.75 cm)
Overall - 131 in. (332.75 cm)
Height
Overall - 49.1 in. (124.7 cm)
Overall - 49.1 in. (124.7 cm)
Width
Overall - 46.5 in. (118.1 cm)
Overall - 46.5 in. (118.1 cm)
Weight
Estimated Dry - 452 lb. (205 kg)
Estimated Dry - 452 lb. (205 kg)

Engine & Drivetrain

Engine
850 Patriot
850 Patriot
Cylinders
2
2
Cooling
Liquid
Liquid
Displacement
840 cc
840 cc
Bore x Stroke
85 x 74 mm
85 x 74 mm
Fuel System
Cleanfire® Injection
Cleanfire® Injection
Starting
Manual
Manual
Ignition
Patriot™ 3DS
Patriot™ 3DS
Drive System
Chaincase
Chaincase
Drive Clutch
P-85
P-85
Driven Clutch
TEAM® LWT
TEAM® LWT
Reverse
PERC®
PERC®
Exhaust
Single, 3 Stage VES with Smart Actuator
Single, 3 Stage VES with Smart Actuator
Brakes
Disc - AXYS® RMK® LWT
Disc - AXYS® RMK® LWT
Fuel Capacity
11.5 gal. (43.5 l)
11.5 gal. (43.5 l)

Operational

Handlebar
Choice of 1 of the following options - Low-Rise ProTaper / Mid-Rise ProTaper / High-Rise ProTaper
Choice of 1 of the following options - Low-Rise ProTaper / Mid-Rise ProTaper / High-Rise ProTaper
Instrumentation

Fuel Gauge - Electronic

Polaris® MessageCenter Gauge - Speedometer, Tachometer and Temp / Low Oil Light -

Fuel Gauge - Electronic

Polaris® MessageCenter Gauge - Speedometer, Tachometer and Temp / Low Oil Light -

Seating or Rider capacity
PRO-LITE, 1 person
PRO-LITE, 1 person
Skis
Gripper
Gripper
Ski Stance
39 - 40 - 41 in. (99.1 - 101.6 - 104.1 cm)
39 - 40 - 41 in. (99.1 - 101.6 - 104.1 cm)
Track LxWxH
Choice of 1 of the following options - 15 x 155 x 2.25 in. Peak / 15 x 155 x 2.6 in. Series 6 fully clipped / 15 x 155 x 2.4 in. Series 5.1
Choice of 1 of the following options - 15 x 155 x 2.25 in. Peak / 15 x 155 x 2.6 in. Series 6 fully clipped / 15 x 155 x 2.4 in. Series 5.1

Other

Additional Colors

Black Pearl / Indy Red

White Lightning / Plum Crazy Purple

Black Pearl

Ghost Gray / Polaris Blue

Indy Red / Lime Squeeze

Black Pearl / Indy Red

White Lightning / Plum Crazy Purple

Black Pearl

Ghost Gray / Polaris Blue

Indy Red / Lime Squeeze

Includes

Hand & Thumb Warmers - Standard Adjustable

Storage

Windshield - Choice of 1 of the following options - AXYS® Low 7 in. Black / AXYS® Deep Snow Mid 13 in. Gloss Black

Hand & Thumb Warmers - Standard Adjustable

Storage

Windshield - Choice of 1 of the following options - AXYS® Low 7 in. Black / AXYS® Deep Snow Mid 13 in. Gloss Black

Suspension

Shocks

Front / Rear Track - WER® C / A

Front Track - WER® Light

Front / Rear Track - WER® C / A

Front Track - WER® Light

Front Suspension

AXYS® RMK® Adjustable

Travel - 9 in. (22.9 cm)

AXYS® RMK® Adjustable

Travel - 9 in. (22.9 cm)

Rear Suspension

AXYS® RMK®

Travel - 16 in. (40.6 cm)

AXYS® RMK®

Travel - 16 in. (40.6 cm)

Features

Additional Features

  • AXYS PERFORMANCE SEAT: The AXYS Performance Seat provides the ideal mix of comfort and support for seated riders, and its design provides standing riders with the greatest room to move.
  • LED LIGHTS: All models built on the AXYS platform feature standard LED headlights to deliver the industry's best lighting that is 80% brighter than incandescent lighting.
  • MESSAGECENTER GAUGE: Informative and easy to read, this gauge keeps a rider aware of sled operating conditions and provides a wealth of additional data.

Immediate Response

  • POWDERTRAC™ HYBRID RUNNING BOARDS: The PowderTrac™ Hybrid Running Boards offer an optimized design with 56% open space for maximum snow clean out while maintaining extreme strength.
  • LIGHTWEIGHT: Polaris snowmobiles are the lightest sleds on the mountain. They have always been light and rigid with added strength and durability while reducing weight on the RMK AXYS platform. Providing riders with instantaneous lift, Polaris sleds help riders get up on top of the snow faster.

Instantaneous Lift

  • AXYS CHASSIS: The raised AXYS chassis increases clearance and reduces drag to keep you on top of the snow. It is purpose-built for mountain riding and allows for improved sidehilling, faster and easier climbing, and instantaneous lift allowing the sled to pop onto the snow faster. The aluminum over structure is lightweight and durable for all types of riding. Taller spindles increase clearance to reduce drag.
  • LIBERTY ENGINE CHOICES FOR EVERY RIDER: Built to integrate seamlessly with the lightweight and agile Polaris chassis, Liberty engines feature class-leading power-to-weight ratios and set a new benchmark for ultimate performance with our complete line-up of powerful options.
  • REAR SUSPENSION: The lightweight, rigid rear suspension design features revised geometry to control pitch. This improves weight transfer, delivering better control and a more compliant ride. The rigid suspension delivers power directly to the snow. Off-trail, riders will notice improved weight transfer while maintaining the approach angle. On-trail, riders will notice a more compliant and comfortable ride. The rear suspension features a rail design that helps lift the rear skid while driving it forward.
  • WER® C/A: The WER® C/A Shocks are highly tune-able and allow you to adjust compression to suit your riding styles and the day's condition.

Rider Balanced Control

  • AXYS BODY PANEL DESIGN: The compact AXYS body design provides the industry's highest lean angle to keep the weight on the skis and track - even in the meadows - and it minimizes paneling out. Paneling out compromises control and can occur on steep inclines and while carving.
  • NARROW, ADJUSTABLE FRONT END: Narrow 39" - 41" adjustable front end is ideal for setting up for more stability or ultimate performance while tree-riding or boondocking.
  • FORGED, ALUMINUM A-ARMS: The efficient one-piece design reduces weight and improves optimal strength, suspension performance, and sled handling. The design reduces unsprung mass, resulting in improved ride quality and increased maneuverability.

Additional Features

  • AXYS PERFORMANCE SEAT: The AXYS Performance Seat provides the ideal mix of comfort and support for seated riders, and its design provides standing riders with the greatest room to move.
  • LED LIGHTS: All models built on the AXYS platform feature standard LED headlights to deliver the industry's best lighting that is 80% brighter than incandescent lighting.
  • MESSAGECENTER GAUGE: Informative and easy to read, this gauge keeps a rider aware of sled operating conditions and provides a wealth of additional data.

Immediate Response

  • POWDERTRAC™ HYBRID RUNNING BOARDS: The PowderTrac™ Hybrid Running Boards offer an optimized design with 56% open space for maximum snow clean out while maintaining extreme strength.
  • LIGHTWEIGHT: Polaris snowmobiles are the lightest sleds on the mountain. They have always been light and rigid with added strength and durability while reducing weight on the RMK AXYS platform. Providing riders with instantaneous lift, Polaris sleds help riders get up on top of the snow faster.

Instantaneous Lift

  • AXYS CHASSIS: The raised AXYS chassis increases clearance and reduces drag to keep you on top of the snow. It is purpose-built for mountain riding and allows for improved sidehilling, faster and easier climbing, and instantaneous lift allowing the sled to pop onto the snow faster. The aluminum over structure is lightweight and durable for all types of riding. Taller spindles increase clearance to reduce drag.
  • LIBERTY ENGINE CHOICES FOR EVERY RIDER: Built to integrate seamlessly with the lightweight and agile Polaris chassis, Liberty engines feature class-leading power-to-weight ratios and set a new benchmark for ultimate performance with our complete line-up of powerful options.
  • REAR SUSPENSION: The lightweight, rigid rear suspension design features revised geometry to control pitch. This improves weight transfer, delivering better control and a more compliant ride. The rigid suspension delivers power directly to the snow. Off-trail, riders will notice improved weight transfer while maintaining the approach angle. On-trail, riders will notice a more compliant and comfortable ride. The rear suspension features a rail design that helps lift the rear skid while driving it forward.
  • WER® C/A: The WER® C/A Shocks are highly tune-able and allow you to adjust compression to suit your riding styles and the day's condition.

Rider Balanced Control

  • AXYS BODY PANEL DESIGN: The compact AXYS body design provides the industry's highest lean angle to keep the weight on the skis and track - even in the meadows - and it minimizes paneling out. Paneling out compromises control and can occur on steep inclines and while carving.
  • NARROW, ADJUSTABLE FRONT END: Narrow 39" - 41" adjustable front end is ideal for setting up for more stability or ultimate performance while tree-riding or boondocking.
  • FORGED, ALUMINUM A-ARMS: The efficient one-piece design reduces weight and improves optimal strength, suspension performance, and sled handling. The design reduces unsprung mass, resulting in improved ride quality and increased maneuverability.