Motorcycle Rear Suspension Shock Absorber 62100-053H0-000 For GN125

   Rear shocks use steel washers that cover the holes through the piston or valve body. It is clamped onto its inner or outer diameter, and fluid pressure driven by the damper piston deflects the gasket into a slightly conical shape, allowing flow to exit beneath the free edge of the gasket. By stacking other washers and sequences of spacers onto this washer, various damping-force-velocity curves can be produced. This is the most important washer stack, sometimes called shim stack, so this is what is often mentioned in suspension design. The damping force must be proportional to the shock spring stiffness. Otherwise, stiff springs will affect damping.

   The two directions of suspension movement are: compression and tension, and rebound occurs when the suspension extends after compression. For years, dampers provided little to no damping force on compression because the orifice-restricted compression valve could easily support the motorcycle upward on impact compression, thereby reducing the loss of tire grip during impact.