QS3 (Quick Switch) compression adjustment lets you custom-tune your ride for better comfort and handling. Works with the flip of a switch. Choose from precalibrated soft, medium, and firm settings according to driving conditions, passengers, and individual performance requirements. Features a spring preload adjustment. Black anodized 6061 aluminum alloy body with remote reservoir. Perfect for frequent 2-up or aggressive riding. All Ryker models, except Rally Edition