This is the fully adjustable Öhlins STX Pro. Building on the success of the popular HD 044 model, this update features a refined all-black design with Öhlins’ signature gold reservoirs and adjuster nuts. It retains the same range of adjustment options, now with black hoses, revamped billet compression adjuster knobs, and the iconic “Ö” logo on the reservoir. The STX Pro offers confidence-inspiring stability and handling, with enhanced bump compliance and an exceptionally plush ride quality. Upgrade your bike with this must-have shock and experience the difference of Öhlins suspension. With ½” ID bushings for easy installation, no sleeves required. The shocks include Öhlins-branded, anodized aluminum bracket arms for rear-mounted installation and a preload adjustment tool. - Black springs - Black body - Piston diameter: 36mm - S: Single tube body - H: Mono type high pressure gas type shock with hose mounted external reservoir - R1: Adjustable rebound damping. Adjuster wheel above the end eye - C1: Adjustable compression damping. Adjuster wheel or slot on the reservoir - L: Adjustable length - Length: 310.5 mm - Oil: Öhlins 1309 - Spring: MCS 962663 / Öhlins 66420-026 - Spring Rate: 26 N/mm - Stroke: 78.5 mm - Adjustable rebound and compression damping - Multiple spring rates available - Hard-anodized, CNC-machined components - Length adjustable by 1/2” (51mm) - High-pressure nitrogen gas charged - Adjustable preload with billet tool - Low-friction shaft and seal head design - Fully serviceable and repairable - Fits with Tour-Pak - Includes brackets for reservoirs