Motorcycle Suspension Compression Stop Washer

Compression Stop Washer

Your rear shock absorber has a thick metal disc with machined passages flowing between both flat sides. Stacked on both sides of this piston are the valving shims, thin steel washers that flex when pushed by oil pressure. When the coilover compresses oil flexes the compression shims open and pushes through the piston holes; rebound shims work on the return stroke. Thick stop washers limit shim flex to set minimum damping. Piston stacks attach to the shaft with a locknut, sealed with rubber o-rings and a teflon coated bush or soft PTFE band. We also supply complete shock pistons.

How compression stop washers control shim travel

  • Set minimum damping by limiting shim flex and travel
  • Protect valving shims from over-deflection under hard impacts
  • Allow fine tuning using varied diameters and thicknesses
  • Essential parts for rebuilds and dyno revalving

Recommended Pairings

Match stop washers with proper tools and measurements: Suspension Tools. Use our shim equivalence calculator and read suspension mods for your budget or watch Nick rebuild and revalve a shock.

Shop Compression Stop Washer

Browse our range of stop washers, shims and piston assemblies to get the damping behaviour you need.

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Compression Stop Washer

Your rear shock absorber has a thick metal disc with machined passages flowing between both flat sides. Stacked on both sides of this piston are the valving shims, thin steel washers that flex when pushed by oil pressure. When the coilover compresses oil flexes the compression shims open and pushes through the piston holes; rebound shims work on the return stroke. Thick stop washers limit shim flex to set minimum damping. Piston stacks attach to the shaft with a locknut, sealed with rubber o-rings and a teflon coated bush or soft PTFE band. We also supply complete shock pistons.

How compression stop washers control shim travel

  • Set minimum damping by limiting shim flex and travel
  • Protect valving shims from over-deflection under hard impacts
  • Allow fine tuning using varied diameters and thicknesses
  • Essential parts for rebuilds and dyno revalving

Recommended Pairings

Match stop washers with proper tools and measurements: Suspension Tools. Use our shim equivalence calculator and read suspension mods for your budget or watch Nick rebuild and revalve a shock.

Shop Compression Stop Washer

Browse our range of stop washers, shims and piston assemblies to get the damping behaviour you need.