Shock Absorber Type 643 Competition QS Preload Adjuster:Hook Wrench – Stepless spring-preload adjustment

– Stepless spring-preload adjustment

The rear shock absorber is

A pressure-relief valve prevents hydraulic lock and unwanted jolts

or the stealthy

Shock Absorber Type 643 Competition QS Preload Adjuster:Hook Wrench – Stepless spring-preload adjustmentSwiveling, 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