PROGRESSIVE SUSPENSION Matte/Gloss Black 970 Series 13.5" Piggyback Shocks, Harley 91-15 FX
Designed for performance-oriented twin shock bikes
Features piggyback reservoirs, high-pressure gas charge and deflective disc-valving, all packaged in a mono-tube style body
Includes progressive rate springs
The threaded pre-load adjustment and external compression adjustment knob allow for fine tuning to provide optimum performance rider weight or riding style