Experience exceptional riding with Yamaha snowmobiles available at Desjardins Marine Sainte-Adèle. Their thoughtfully designed ergonomics provide unparalleled comfort, allowing you to fully enjoy your snowy adventures. With advanced suspension technology, you benefit from optimal stability and manoeuvrability, even on the most rugged terrains. Not to mention the renowned Japanese reliability that characterizes Yamaha snowmobiles, giving you peace of mind during your rides. 

Discover our range of snowmobiles, as well as Yamaha parts, accessories, and equipment, and get ready to create unforgettable moments.

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ID # 35118852

2025 Arctic Cat RIOT 858 SNO PRO

  • 2025 Arctic Cat RIOT 858 SNO PRO
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Overview

RIOT

Built to Handle It All

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.

2025 Arctic Cat RIOT 858 SNO PRO RIOT 858 SNO PRO

VERSATILITY MEETS VELOCITY

  • All New 858 C-TEC2™ Engine
  • AC5S Shocks
  • Cobra™ or Hurricane™ Track
  • Sport Gauge
Specifications
Model
RIOT
Category Name
Snowmobiles
Year
2025
Sale Type
New
Manufacturer
Arctic Cat
engine
Exhaust
APV IV w/ Full Stainless Steel Exhaust & EGT Sensors
Ignition
Digitally Controlled CDI
Cylinders
2
Engine Type
858, 2-Stroke
Lubrication
Electronic Injection
Displacement
858cc
Bore X Stroke
85 x 75.6 mm
Fuel Capacity
10.4 gal
Fuel Delivery
Next Gen. C-TEC2
Minimum Octane
91
Oil System Capacity
3.0 qt
Engine Stator Output
270 W @ 3000 RPM
Coolant System Capacity
5.4 qt
powertrain
Brakes
Stealth Hydraulic Master Cylinder
Gearing
27/60
Reverse
Push-Button Engine
Chain Pitch
Belt
Drive Clutch
ADAPT
Drive System
AC Trail Belt Drive
Driven Clutch
ADAPT
Clutch Calibration
0-5,000 ft.
Track Drive Sprocket
9 Tooth, 2.86 Pitch, Exvolute
suspension
Sway Bar
Standard
Ski Shocks
AC5S
Rear Travel
13.5 in
Front Travel
7.5 in
Rear Suspension
CROSS-ACTION w/ 3 Wheel Rear Axle Assembly, Torque-Sensing Link Rear Arm & Adjustable Torsion Springs
Front Suspension
AWS 39
Rear Track Shock
AC5S
Front Track Shock
AC5S
dimension
Lug
1.35 in or 1.75 in
Pitch
2.86 in
Ski Stance
38-40 in - Adjustable
Track Type
Cobra or Hurricane
Runner Type
Single Runner w/ Carbide
Track Width
15 in.
Track Length
146 in.
Ski Type/Width
G2 ProClimb - 7 in
Overall Chassis Width
48-49 in
Overall Chassis Height
49 in
Overall Chassis Length
130.5 in
instrumentation
Oil
LCD Icon
Fuel
Digital
Hours
Digital
Coolant
Digital Bar Graph
Odometer
Digital
Tachometer
Digital
Speedometer
Digital
Type Of Gauge
Sport
features
Color
Medium Green/Black
Seating
Trail
Starter
Push-Button Electric Start
Lighting
LED
Handlebars
Hooked
Windshield
5.5 in Low Height
Heat Exchanger
Front/Long Tunnel
Standard Accessories
12V Outlet, Sport Front Bumper, Integrated Goggle Holder, Hand & Thumb Warmers, Ice Scratchers, Standard Brake Disc, Ratio Steering, ATACH Rear Storage, Tether Switch, Visor Plug-Ins
main features

2025 Arctic Cat RIOT 858 SNO PRO 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.

2025 Arctic Cat RIOT 858 SNO PRO QUICKLY CONNECT

ATACH Latching System

Adding accessories to your sled is a snap with this all new 4-point latching system. You can install and remove accessories in seconds, so no matter where you are, you can customize your sled with ease.

2025 Arctic Cat RIOT 858 SNO PRO SMOOTH POWER DELIVERY

ADAPT CVT SYSTEM

With its lightweight, narrow design that increases performance and belt life, as well as the industry’s only self-adjusting clutch, the ADAPT™ CVT system provides better throttle response, smoother power delivery and a ride like no other.

2025 Arctic Cat RIOT 858 SNO PRO A NEW BREED OF POWER

ALL NEW 858 ENGINE

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.

2025 Arctic Cat RIOT 858 SNO PRO PLAYFUL COMFORT

CROSS-ACTION REAR SUSPENSION

The uncoupled CROSS-ACTION rear suspension provides unparalleled agility from powder to hardpack. The design enables the front and rear halves of the suspension to move independently, so riders enjoy excellent cornering and bump absorption on the trail, as well as off-trail weight transfer.

2025 Arctic Cat RIOT 858 SNO PRO INCREASED DURABILITY

ARCTIC CAT TRAIL BELT DRIVE

The CATALYST platform utilizies Arctic Cat's belt drive system rather than a chain drive. This allows for enahnced durability and fewer parts in the system. The adjustable center distance allows for multiple ratio options and makes servicing simple.

2025 Arctic Cat RIOT 858 SNO PRO CONFIDENCE-INSPIRING HANDLING

AWS 39 FRONT SUSPENSION WITH PROGRESSIVE RATIO STEERING

AWS 39 is the culmination of over 40 years of experience with the Arctic Wish Suspension, optimized for crossover versatility.  By centralizing the weight distribution, the suspension now sits directly under the rider giving them more control and flexibility to move around on the sled. This also puts more of the sled's weight on the skis, improving balance.
 
With a progressive steering ratio, riders will feel the difference immediately. The sled will react to the slightest movement, making the Riot 600 feel like a natural extension of the rider's body.

2025 Arctic Cat RIOT 858 SNO PRO BRIGHTEN ANY RIDE

ASYMMETRICAL LED HEADLIGHT

A premium LED headlight is crucial to optimize your visibility. Equipped with both high and low beams, this headlight casts an LED light pattern with great range and width. Plus, with it's unique asymmetrical design, everyone will know that you're on an Arctic Cat.

2025 Arctic Cat RIOT 858 SNO PRO READY TO GO

PUSH-BUTTON ELECTRIC START

The convenience of electric start is just one of the countless things that sets the Riot apart. With just the push of a handlebar-mounted button you’ll be up and moving.It is also equipped with a backup manual starter.

2025 Arctic Cat RIOT 858 SNO PRO ULTIMATE ADJUSTABILITY

AC5S SHOCKS

Designed by Arctic Cat, for Arctic Cat, the all new AC5S shocks offer 5 different positions and adjustable spring preload. They are uniquely calibrated for crossover riding and showcase both Arctic Cat's legacy of durability and its signature style.