Street S46 Blackline Shock BMW , S46DR1L The STX46 Street Performance Line is based on our popular STX46 DR1 shock absorber and developed for naked sports bikes and street performance bikes. It features a large 46mm main piston and a Hose mounted reservoir with Compression and Rebound adjustability. With adjustable damping you can change the behavior of the shock to suit your taste and even fit a hydraulic spring pre loader to change the stance of the bike. This is the perfect choice for the naked sports bike, or as well call it: Street Performance Line. Tech Monotube shock absorber with Hose mounted Reservoir High Pressure Nitrogen Gas Charged Adjustable rebound damping and compression Top Level Comfort, Rideability and Performance A range of spring rates available Fully Serviceable and Repairable Low-friction Shaft / Seal Head Design Hard Anodized - Precision CNC-Machined Components