2025 Polaris 850 RMK SP 155

The 2025 Polaris 850 RMK SP 155 is a mountain snowmobile designed for easy handling and versatility in varying snow conditions, making it an accessible option for exploring the backcountry. It features the durable and powerful 850 Patriot engine and is built on the lightweight Matryx platform.   

 Engine and drivetrain 

• Engine: 850 Patriot, a liquid-cooled, 2-cylinder, 840cc engine.
• Fuel System: Cleanfire® Injection.
• Clutch: P-85 / TEAM® LWT.
• Drive System: QuickDrive2, a low-inertia belt-drive system for quick response.
• Exhaust: Single, 3-stage VES (Variable Exhaust System).
• Reverse: PERC® (Polaris Electronic Reverse Control).
• Starter: Available with a manual pull starter, with electric start as an option. 

Chassis and suspension

• Platform: The Matryx platform features a narrow seat, tank, and bodywork for improved rider connection and seamless movement.
• Tunnel: A tapered, full-length tunnel with a cooler provides superior versatility for a wide variety of snow conditions.
• Estimated Dry Weight: 432 lbs (195.9 kg), according to North Bay Cycle & Sports.
• Front Suspension: RMK React™ with a 36–38 inch adjustable ski stance, designed for predictable handling and effortless sidehilling.
• Rear Suspension: Standard RMK, calibrated for easy handling and comfort.
• Shocks: Polaris IFP (Internal Floating Piston) shocks on the front and rear suspension provide consistent damping performance.
• Track: 15 x 155 x 2.75" Series 8. 

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