Arctic Cat M 858 Sno Pro ALPHA ONE SG

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.

PURPOSE-BUILT POWER
858 ENGINE

Push the limits with a strong, responsive output across the full RPM range with a consistent pull you can feel. The 858 two-stroke EFI engine is designed for seamless integration with the Arctic Cat CATALYST platform. Patented exhaust valves and a sealed intake system maximize airflow and throttle response, while a purpose-built design reduces weight. All resulting in a compact, durable package built to perform season after season.

UNMATCHED CONTROL
ALPHA ONE SINGLE-BEAM REAR SUSPENSION

ALPHA ONE Suspension is the only single-beam rear suspension in the industry, providing enhanced agility in deep snow. The lightweight, single-beam design provides nimble action, allowing riders to maneuver the sled and carve tighter circles with less effort than conventional, dual-rail snowmobiles.

OPTIMIZED FOR DEEP SNOW
AWS 36 FRONT SUSPENSION

The AWS 36 Front Suspension was designed specifically with the M 858 in mind. With lightweight spindles and precision engineered geometry, this suspension system optimizes your performance in deep snow.

ULTIMATE ADJUSTABILITY
AC5S SHOCKS

Meet our anything-but-stock shocks. AC5S Ski, front and rear track shocks are designed and calibrated at Arctic Cat for Sno Pro® sleds and feature a unique color scheme. The 5-position adjustment with adjustable spring preload gives you even more flexibility to finetune your ride. 

INCREASED DURABILITY
ARCTIC CAT MOUNTAIN BELT DRIVE

The CATALYST platform utilizes Arctic Cat's belt drive system rather than a chain drive. This allows for enhanced durability and fewer parts in the system. The adjustable center distance allows for multiple ratio options and makes servicing simple. Additionally, the track included with the AC Mountain Belt Drive ensures that the sled gets up on the snow quicker, avoiding trenching issues.

UNPRECEDENTED TRACTION
POWERCLAW TRACK

Unlock the backcountry with PowerClaw™ a lightweight track that delivers the ultimate deep snow traction and performance. The staggered, forward curving paddle tower design won't fold over, allowing you to float over the deepest snow. Available in 146-in and 154-in with 2.6-in lugs.

EASIER STEERING
G2 PROCLIMB SKIS

The lightweight G2 ProClimb™ 7-inch Mountain Ski is tapered to stay on top of the snow. The ski works in tandem with the AMS spindles for easier steering and better deep snow performance.

NAVIGATION AT YOUR FINGERTIIPS
G8 DIGITAL DISPLAY

The 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 cellular data, dependent on region, to share the ride with up to 15 people.