Improved performance, simplified installation and air bleeding thanks to SKF's unique one-piece design. Simplify air bleeding for expanded adjustability with this patented unique one-piece design. Wide temperature range of -40 to +150°C using HNBR. Plastic back-up ring to reduce friction and wear under high pressure. Increased service life and performance. Easy to install with integration of all components into one unit (simplifying supply and installation). Optional stroke bumper (sold separately) can be integrated into the sealing system. Compact solution to reduce height (to maximize stroke length / minimize shock absorber length). Simplified air bleeding thanks to unique one-piece design. Note: Contains components for ONE shock. Note: For Kayaba (KYB) shock.