2025 Arctic Cat® Riot 858 with ATAC 146"/1.35" Cobra

2025 Arctic Cat® Riot 858 with ATAC 146"/1.35" Cobra

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Exterior Colors:

  • Year 2025
  • Make Arctic Cat®
  • Model Riot 858 with ATAC
  • Engine Stator Output: 270W @ 3000 RPM
2025 Arctic Cat® Riot 858 with ATAC 146"/1.35" Cobra

2025 Arctic Cat® Riot 858 with ATAC 146"/1.35" Cobra

2025 Arctic Cat® Riot 858 with ATAC 146"/1.35" Cobra

MAXIMUM ADAPTABILITY

Why choose between the thrills of on-trail riding and the adventure of venturing into the deep snow when you can have both? Riot blends trail and backcountry performance seamlessly for the ultimate adaptable ride.

Features may include:

A NEW BREED OF POWER

The all-new 858 two-stroke engine is designed for seamless integration into the new CATALYST platform. With an 8% increase in displacement, this engine houses an 11% increase in output over the C-TEC2 800 and weighs 4% less. It features an optimized air intake system, a new exhaust valve design for more consistent power and cleaner emissions, and an all-new crankcase for increased stroke and integrated engine mounts.

PEAK PERFORMANCE UNLOCKED
  • CATALYST CHASSIS

The revolutionary CATALYST platform has been built from the ground up to optimize every aspect of your ride, so much so that you’ll feel at one with the sled. With enhanced ergonomics, a lower center of gravity, our exclusive laydown engine design, specially calibrated suspension and more, this changes everything.

NAVIGATION AT YOUR FINGERTIPS
  • ARCTIC CAT G8 DIGITAL DISPLAY

The all new Arctic Cat G8 digital display, powered by Garmin, offers seamless integration with your sled. A built in GPS with preloaded trail maps, customizable data fields and phone connectivity are just some of the features that make G8 essential for every ride. Plus, the group ride functionality utilizes satellite or celluar data, dependent on region, to share the ride with up to 15 people.

CONFIDENCE-INSPIRING HANDLING
  • AWS 39 FRONT SUSPENSION WITH PROGRESSIVE RATIO STEERING

The AWS 39 Front Suspension is engineered specifically to compliment the Riot 858. With ratio steering to reduce rider effort, you'll experience more control.

PLAYFUL COMFORT
  • CROSS-ACTION REAR SUSPENSION

The CROSS-ACTION skidframe creates a playful ride quality, with more weight transfer during acceleration, great performance in deep snow, and outstanding comfort and traction over big bumps in all snow conditions. Arctic Cat’s Torque-Sensing Link allows a lower and more consistent track tension, plus an adjustable spring preload and a 3-wheel rear axle assembly. The CROSS-ACTION suspension offers 13.5 inches of travel and comes in a 146-inch length with ice-scratchers.

Engine

Engine Type 858, 2-Stroke
Displacement 858cc
Cooling Liquid
Cylinder Liners 2
Bore 85 mm
Stroke 75.6 mm
Lubrication Electronic Injection
Starter Push-Button Electric Start
Ignition Digitally Controlled CDI
Engine Stator Output: 270W @ 3000 RPM
Exhaust APV IV w/ Full Stainless Steel Exhaust & EGT Sensors
Fuel Type Delivery: Next Gen. C-TEC2 | Minimum Octane: 91

Drivetrain

Drive System AC Trail Belt Drive
Clutch ADAPT | Driven: ADAPT | Calibration: 0-5,000 ft
Brake System Type Stealth Hydraulic Master Cylinder
Gears 27/60
Chain Pitch Belt
Sprocket Chain Track Drive: 9 Tooth, 2.86 Pitch, Exvolute
Reverse Push-Button Engine

Suspension

Front Suspension AWS 39
Shock Absorber Ski: FOX 1.5 iQS
Front Travel (in./cm.) 7.5 in
Rear Suspension CROSS-ACTION w/ 3 Wheel Rear Axle Assembly, Torque-Sensing Link Rear Arm & Adjustable Torsion Springs w/ ATAC System
Front Shocks Track: Arctic Cat IFP 1.5
Rear Shocks Track: FOX 2.0 ZERO iQS
Rear Travel (in./cm.) 13.5 in

Dimensions

Overall Length Chassis: 130.5 in
Overall Width Chassis: 48-49 in
Overall Height Chassis: 49 in
Track Width 15 in
Track Length 146 in
Track Lug 1.35 in
Track Pitch 2.86 in
Ski Type G2 ProClimb - 7 in | Stance: 38-40 in - Adjustable

Capacities

Oil capacity System: 3.0 qt
Fuel Capacity 10.4 gal
Cooling System Capacity: 5.4 qt

Color

Colors Sunset Orange/Woody's Orange

Lights and Safety

Lighting LED

Features

Track Type Cobra
Ski Runners Single Runner w/ Carbide
Gauges Arctic Cat G8 (CAN w/o GRR)
Speedometer Digital
Windshield 5.5 in Low Height

Product Photography