ÖHLINS - Street S46 Shock (YA 535)YA 535 With adjustable compression and rebound damping, you can change the behavior of the shock to suit your taste. The benefit of an external reservoir is that the shock has more oil, keeping it cooler in extreme conditions and allowing for additional adjustability. The hydraulic preload adjuster will allow you to make preload changes without a tool to accommodate weight variations. Type Code: S46HR1C1S Tech Adjustable Rebound and Compression