2026 Polaris BOOST RMK KHAOS 155 Patriot Boost

The Ultimate in Dynamic and Agile All-Mountain Performance

The RMK Khaos delivers transfer and traction for a wild and playful ride in the backcountry. RMK Khaos models are lighter than the competition for easier maneuverability and better flotation in deep snow conditions.

Rider First Design. Effortlesss Control.

The Matryx RMK platform is the lightest mountain sled in the industry and includes a narrow seat, tank and console that provide improved rider connection to the sled while the narrow bodywork enables more agility and less drag in the snow. The seat design and running boards further improves rider mobility on the sled.

Industry-Leading Technology

Polaris sleds lead the way in technology that enhances your ride. Technology built to help you plan rides, track your group, keep your sled cool in tough conditions, and see your way from dusk til dawn.

STAY CONNECTED. TRACK THE FUN.

Track, share, and relive your ride with the 7S Display powered by RIDE COMMAND. The 7" glove-touch display is purpose-built for snowmobiles with industry-leading features including sled-to-sled Group Ride technology to see your ride group with or without cell coverage. Plus, access other ride-enhancing features like on-board diagnostics, detailed maps, ride tracking, and more.

BUILT TO STAY COOL AND LIGHT.

The shortened centralized cooling system on the RMK Matryx Slash platform features reduced dry weight and delivers improved cooling capability while reducing snow and ice build up. Reversible scratchers will help to keep your Patriot power running within spec.

Ultimate Control

The RMK Matryx platform features a next-level rider interface and a shortened, tapered tunnel. Combined they deliver minimized drag and maximum control.

 

TECHNICAL DETAILS

Engine and Drivetrain

• Bore x Stroke : 85 mm x 74 mm
• Cylinders Displacement : 2 - 840 cc Disc
• Brake Type : RMK® LWT
• Drive System Type : QuickDrive™
• Drive/Driven Clutch : P-85 / TEAM® LWT
• Engine Type / Cooling : Liquid Cooled
• Exhaust : Single, 3 Stage VES
• Fuel System  :Cleanfire® Injection
• Ignition : Patriot™ 3DS

Dimensions

•  Estimated Dry Weight : 426 lb (193.2 kg)
• Fuel Capacity : 11 gal (41.6 L)
• Overall Height : 53 in (134.6 cm)
• Overall Length : 122.8 in (311.9 cm)
• Overall Width : 43.4 in (110.3 cm)
• Person Capacity : 1
• Ski Center Distance : 36 - 37 - 38 in (91.4 - 93.9 - 96.5 cm)

Suspension

• Front Shocks : WER Velocity Hi-Lo
• Front Suspension : RMK React
• Front Track Shock : WER Velocity Hi-Lo
• Front Travel : 9 in (22.9 cm)
• Rear Suspension : RMK® KHAOS®
• Rear Track Shock : WER Velocity Hi-Lo
• Rear Travel : 16 in (40.6 cm)
• Ski Type : Gripper Track Width / Length / Height (in) : 15 x 146 x 2.0" Crossover / 15 x 146 x 2.6" Series 6

Features

• 12V Outlet / RCA : Accessory
• Electric Start : Option
• Fuel Gauge : Electronic
• Hand & Thumb Warmers :Standard High & Low
• Handlebar Type : 5" ProTaper
• Heated Passenger Grips : N/A
• Mirrors : N/A Passenger
• Seat : N/A
• Rear Rack/Tow Hitch : N/A
• Reverse : PERC®
• Riser Type : N/A
• Seat Type : MATRYX PRO-LITE
• Security System : Option
• Speedometer : MessageCenter Display / 7S
• Display Storage : Standard
• Tachometer : MessageCenter Display / 7S
• Display Temp/Low Oil Light : MessageCenter Display / 7S
• Display Windshield : Wind Deflector