2025 Arctic Cat® Riot 858 with ATAC Cobra

Product Description

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.

• Year2025
• ManufacturerArctic Cat®
• Model NameRiot 858 with ATAC
• Trim Name146″/1.35″ Cobra
• Generic Type (Primary)Crossover
• EngineStator Output: 270W @ 3000 RPM
• Engine Type858, 2-Stroke
• Displacement858cc
• CoolingLiquid
• Cylinder Liners2
• Bore85 mm
• Stroke75.6 mm
• LubricationElectronic Injection
• StarterPush-Button Electric Start
• IgnitionDigitally Controlled CDI
• ExhaustAPV IV w/ Full Stainless Steel Exhaust & EGT Sensors
• Fuel TypeDelivery: Next Gen. C-TEC2 | Minimum Octane: 91
• Drivetrain
• Drive SystemAC Trail Belt Drive
• ClutchADAPT | Driven: ADAPT | Calibration: 0-5,000 ft
• Brake System TypeStealth Hydraulic Master Cylinder
• Gears27/60
• Chain PitchBelt
• Sprocket ChainTrack Drive: 9 Tooth, 2.86 Pitch, Exvolute
• ReversePush-Button Engine
• Suspension
• Front SuspensionAWS 39
• Shock AbsorberSki: FOX 1.5 iQS
• Front Travel (in./cm.)7.5 in
• Rear SuspensionCROSS-ACTION w/ 3 Wheel Rear Axle Assembly, Torque-Sensing Link Rear Arm & Adjustable Torsion Springs w/ ATAC System
• Front ShocksTrack: Arctic Cat IFP 1.5
• Rear ShocksTrack: FOX 2.0 ZERO iQS
• Rear Travel (in./cm.)13.5 in
• Dimensions
• Overall LengthChassis: 130.5 in
• Overall WidthChassis: 48-49 in
• Overall HeightChassis: 49 in
• Track Width15 in
• Track Length146 in
• Track Lug1.35 in
• Track Pitch2.86 in
• Ski TypeG2 ProClimb – 7 in | Stance: 38-40 in – Adjustable
• Capacities
• Oil capacitySystem: 3.0 qt
• Fuel Capacity10.4 gal
• Cooling SystemCapacity: 5.4 qt
• Color
• ColorsSunset Orange/Woody’s Orange
• Lights and Safety
• LightingLED
• Features
• Track TypeCobra
• Ski RunnersSingle Runner w/ Carbide
• GaugesArctic Cat G8 (CAN w/o GRR)
• SpeedometerDigital
• Windshield5.5 in Low Height