HD538 - OHLINS Harley-Davidson Street Glide Twin Shock Absorber STX 36 (296 mm / black springs)STX 36 Twin shock absorber by Ohlins for Harley Davidson models. Developed for bikes with twin shock absorbers, the Ohlins STX 36 is a classic monotube design, featuring all the classical Ohlins qualities delivering top notch performance for your street bike. Available in emulsion, piggyback or hose versions, depending on application, it can also be specified with a number of different damping adjustment options with or without length adjustment.