2025 Polaris Patriot Boost RMK Khaos 155 SC

Storm Gray / Indy RedNew Snowmobiles

MSRP

$21,799

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2025 Polaris Patriot Boost RMK Khaos 155 SC in North Bend, Oregon - Photo 1
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THE ULTIMATE IN DYNAMIC & AGILE ALL-MOUNTAIN PERFORMANCE

UNMATCHED FUN FACTOR IN ANY TERRAIN.

The RMK Khaos delivers a wild child attitude, dynamic and agile performance.

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2025 Polaris Patriot Boost RMK Khaos 155 SC

Condition
New
Category
Snowmobiles
Model Type
RMK Khaos
Model Code
S25TFG8MS
Color
Storm Gray / Indy Red

Industry-Leading Technology

  • PLAN YOUR RIDE. TRACK THE FUN.: Plan, track, and share your ride by adding the 7S Display with Ride Command Technology. The 7" glove touch display is purpose bulit for snowmobiles, with on board diagnostics, trail maps, points of interest, and sled to sled Group Ride technology to see your ride group with or without cell coverage. Standard on Boost models.
  • 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.
  • 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.

Purpose-Built Ride & Handling For All-Mountain

  • NEW THROTTLE SYSTEM: All-day control
  • REDESIGNED HEADLIGHTS: Redesigned to be Lighter-Weight, Yet Durable
  • 1" LOWER SEAT DESIGN: Easier Maneuverability in Deep Snow
  • REDESIGNED RUNNING BOARDS: Better Clean-Out for Improving Riding Experience
  • ULTIMATE CONTROL: The RMK Matryx Slash platform features a next-level rider interface and slashed, tapered tunnel. Combined they deliver minimized drag and maximum control.
  • LIGHTNING-FAST RESPONSE. PUTS THE POWER DOWN.: QuickDrive is the lightest drive system in the industry and produces the lowest inertia for optimum response. Choose between the 325 Series 9 Track for instant traction and forward drive in deep snow or the 275 Series 8 track for versatility and traction in varying snow conditions.
  • PRECISE STEERING. CONFIDENCE INSPIRING.: The RMK React Suspension lets riders effortlessly initiate sidehills and experience less fatigue with the most predictable ride. It includes a 36"-38" stance, a sway bar designed for predictable handling, and forged a-arms and spindles optimized for strength and durability.
  • BIG TIME SHOCKS FOR BIG TIME TERRAIN.: Ultra-premium Walker Evans Hi-Lo Shocks are the best of the best in extreme mountain conditions. They feature remote reservoirs for increased oil capacity to ensure all-day performance and durability, along with high and low-speed compression adjustment to dial in the ride.
  • When we build a sled, we build it to be the best sled for each unique riding style, not simply a different sticker or name. Every part is scrutinized to deliver what you need as a rider.

The Best Mountain Sled Just Got Better - and Even Lighter

  • RIDER FIRST DESIGN. EFFORTLESS CONTROL.: The Matryx RMK platform 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 new seat design and running boards further improves rider mobility on the sled while the new throttle system helps you feel connected to the sled on every ride.
  • FLOAT. AND FLY.: The RMK Khaos Rear Suspension features geometry that provides transfer and traction for light, playful handling, along with the best response and control in all riding zones. Available in 146, 155 and 165 lengths.
  • CHOOSE YOUR POWER.: Three engine choices from the Patriot Family to fit your riding style. Choose the legendary durability and relentless acceleration of the Patriot 850, or the Factory Mods… the ultra-responsive Patriot 9R or turbocharged Patriot Boost.
  • The RMK Khaos delivers transfer and traction for a wild ride. 2025 Boost and 9R RMK Khaos models are up to 6.5 lbs. lighter and have a redesigned throttle system, 1" lower seat, improved running board clean-out, and a lightweight headlight for improved connection and control to deliver the best RMK experience yet.

General Information

Manufacturer
Polaris
Model Year
2025
Model
Patriot Boost RMK Khaos 155 SC
Model Code
S25TFG8MS
Color
Storm Gray / Indy Red

Dimensions

Length
Overall - 126.7 in. (321.8 cm)
Height
Overall - 53 in. (134.6 cm)
Width
Overall - 43.4 in. (110.3 cm)
Weight
Estimated dry - 442 lb. (200.5 kg)

Engine & Drivetrain

Engine
Patriot Boost
Cylinders
2
Cooling
Liquid
Displacement
840 cc
Bore x Stroke
3.3 x 2.9 in. (85 x 74 mm)
Fuel System
Cleanfire® Injection
Starting
Manual
Ignition
Patriot™ 3DS
Drive System
Type - QuickDrive / QuickDrive2
Drive Clutch
P-22
Driven Clutch
TEAM LWT
Clutch Calibration
High elevation
Reverse
PERC®
Exhaust
Single, 3 Stage VES
Brakes
Disc - RMK® LWT
Fuel Capacity
11 gal. (41.6 l)

Operational

Handlebar
5 in. ProTaper
Instrumentation

Fuel gauge - Electronic

Speedometer, Tachometer, Temp / Low oil light - 7S display

Seating or Rider capacity
MATRYX PRO-LITE - Single person
Skis
Gripper
Ski Stance
36, 37, 38 in. (91.4, 93.9, 96.5 cm)
Track Type
Series 8
Track LxWxH
155 x 15 x 2.75 in.

Other

Additional Colors

Matte Dark Cherry / Gloss Black

Storm Gray / Indy Red

Shadow Gray / Gloss Black

Ghost White Metallic / Gloss Black / Radiant Green

Includes

Hand and thumb warmers - Standard high and low

Storage

Windshield - Wind deflector

Suspension

Shocks
Front / Front track / Rear track - WER Velocity Hi-Lo
Front Suspension

RMK® React™

Travel - 9 in. (22.9 cm)

Rear Suspension

RMK® KHAOS®

Travel - 16 in. (40.6 cm)

Gallery

2025 Polaris Patriot Boost RMK Khaos 155 SC in North Bend, Oregon - Photo 1
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2025 Polaris Patriot Boost RMK Khaos 155 SC in North Bend, Oregon - Photo 13

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Polaris recommends that all riders take a safety training course. Do not attempt maneuvers beyond your capability. Always wear a helmet and other safety apparel. Never drink and ride. ©2024 Polaris Industries Inc.

We are in the process of adding model data for the new 2025 Polaris snowmobiles. We do everything we can to ensure that all of our information is correct; however, during the initial entry process, we reserve the right to make additions, deletions, or modifications to model specifications, features, images and prices displayed on this and any associated webpage at any time without prior notice. Please contact your local dealer to confirm all information including pricing which is in the process of being adjusted. 

Due to continued challenges across supplier networks as well as increasing logistics costs, product pricing, freight charges, specifications, and features are subject to change at any time without prior notice. Please confirm all information with your local dealership.

Images, where available, are presented as reasonable facsimiles of the offered unit and/or manufacturer stock images. Non-standard options or features may be represented. No guarantee of availability or inclusion of displayed options should be inferred; contact the dealer for more details.

  • Price, if shown and unless otherwise noted, represents the Manufacturer's Suggested Retail Price (MSRP) or dealer unit price and does not include government fees, taxes, dealer vehicle freight/preparation, dealer document preparation charges, labor, installation, or any finance charges (if applicable). MSRP and/or final sales price will vary depending on options or accessories selected; contact dealer for more details.

  • Images, where available, are presented as reasonable facsimiles of the offered unit and/or manufacturer stock images. Non-standard options or features may be represented. No guarantee of availability or inclusion of displayed options should be inferred; contact dealer for more details.