MX366 Reservoir Shock

Small Package Big Performance: YSS MX366 External Reservoir Mono Shock

Looking to bridge the gap between street comfort and track-day dominance? The YSS MX366 Series is a premium, high-performance monoshock engineered for mid-sized sport bikes, light hyper-nakeds, and race machines (including popular platforms like the Yamaha R3, Kawasaki Ninja series, and custom street fighters). Positioned within YSS’s elite Topline category, the MX366 features a race-bred external reservoir system that brings true world-championship-level stability to everyday street and track riding.

The defining upgrade of the MX366 is its external Bladder reservoir. By utilizing an internal bladder system to keep the high-pressure nitrogen gas separated from the hydraulic oil, the MX366 offers vastly superior oil volume and cooling. This completely prevents performance-robbing oil cavitation (foaming) and heat fade, ensuring your suspension feels incredibly consistent, plush, and controlled from your first lap to your last.

Why Upgrade to the YSS MX366 Monoshock?

• Zero-Fade External Reservoir: The auxiliary nitrogen tank increases total oil capacity, optimizing cooling efficiency. Damping remains perfectly firm and responsive during long, aggressive canyon runs or hot track sessions.
• Dedicated Compression Tuning: Features up to 30 clicks of precise compression adjustability. This allows you to stiffen or soften how the shock responds to initial impacts, keeping the chassis perfectly composed under hard acceleration and load shifts.
• Tactile Rebound Adjustability: Includes a user-friendly, 30 Click rebound knob to regulate how quickly the suspension returns after a bump. This keeps your rear tire planted firmly against the asphalt, eliminating mid-corner wallowing or bouncy "pogo" effects.
• Rigid 16mm Shaft: While keeping a compact 36mm piston body, the MX366 is built with an oversized 16mm hardened spindle shaft. This design delivers maximum structural rigidity and completely resists flexing under severe cornering and braking forces.
• Customizable Preload & Ride Height: Easily set your rider sag using the threaded preload collar. Most models also include an integrated length adjuster (+/- 5mm), allowing you to raise or lower the rear end to sharpen steering geometry and turn-in speeds.

Technical Specifications

• Shock Type: High-Performance Mono Shock with External Reservoir
• Piston Diameter: 36 mm
• Shaft Diameter: 16 mm
• Reservoir Type:Remote Hose-Mounted Bladder Reservoir.
• Adjustability: 30-Click Compression Damping, 30 Click Rebound Damping, Threaded Spring Preload, and Ride Height/Length Adjustment (+/- 5mm on selected models)
• Serviceability: 100% Fully rebuildable and customizable by professional suspension technicians

Compatible vehicles:

• 1994 KAWASAKI ZXR 250