Features: 36mm Piston Diameter. Hard Anodized - Precision CNC-Machined Components. Adjustable Preload w/ Billet tool. Emulsion Type Nitrogen Charged Design. STX Single Tube design. Multiple Spring Rates available. Low-friction Shaft / Seal Head design. Sold as a pair. Fully Serviceable and Repairable. Stroke 59 / 2.3".