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you can now adjust your fork’s spring preload and damping for a truly custom setup
adjustable setup
643 QSD — Diagonal
and improved safety
the Aprilia Tuono 660 Factory is a well-built motorcycle
Shock Absorber Type 643 Competition QS Mono Shock you can now adjust yourSwiveling, diagonally mounted compression reservoir. The reservoir is mounted at an angle and can swivel, offering numerous installation options on space constrained bikes. A solid milled upper mount integrates the high and low speed compression adjusters. Both compression and rebound provide 22 clicks of adjustment for uncompromised fine tuning. A pressure control valve prevents hydraulic blocking and tames sudden impacts. Spring preload is
