SHOCK ABSORBER WITH AN ADJUSTABLE LOCK-OUT VALVE AND TWO-STAGE FLOW RESTRICTION

摘要

A suspension system with a shock absorber having a manually adjustable lock-out valve (86) and a blow-off valve (100) for controlling damping characteristics suitable for a wide variety of large, medium, and small bumps, and rider induced suspension action, while selectively providing a stiff suspension for increased drive line efficiency. The shock absorber includes a damper containing a non-compressible fluid. A piston (62) dividing the chamber into two portions has a primary channel (74) and a secondary channel (76). A lock-out valve is coupled to the primary channel and is manually movable from an open position to a closed position. A blow-off valve is positioned in the chamber's second portion adjacent to the secondary channel to block the secondary channels. The blow-off valve is movable relative to the secondary channel between closed and open position.