Tractive Hydraulic Preload Adjusters

Teknik Hydraulic Preload Adjuster (HPA)

Hydraulic Preload Adjuster (HPA)

If you carry different gear on your adventures, sometimes a pillion passenger, sometimes solo — with all those weight changes — you should be adjusting your spring preload to suit. It's far more comfortable plus safer too — see our Offroad Setup Guide or matching Road Setup Guide for instructions.

Fast, on-bike preload control for changing loads

  • Adjust spring preload quickly by hand without crawling into tight chassis spaces
  • Threads onto TracTive shock bodies like a traditional castellated spring nut
  • Hydraulic pressure expands or contracts the spring seat for fine tuning
  • Available as a remote mounted knob and reservoir on a fluid hose, or a combined single-unit HPA assembly
  • Ideal when traditional preload wrenches are hard to use — see our preload wrenches

Recommended Pairings

Consider matching HPAs with Suspension Tools for installation and on-trail adjustments.

Shop Hydraulic Preload Adjuster (HPA)

Browse HPA assemblies and remote kits to make spring preload adjustments fast, safe and repeatable.

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Hydraulic Preload Adjuster (HPA)

If you carry different gear on your adventures, sometimes a pillion passenger, sometimes solo — with all those weight changes — you should be adjusting your spring preload to suit. It's far more comfortable plus safer too — see our Offroad Setup Guide or matching Road Setup Guide for instructions.

Fast, on-bike preload control for changing loads

  • Adjust spring preload quickly by hand without crawling into tight chassis spaces
  • Threads onto TracTive shock bodies like a traditional castellated spring nut
  • Hydraulic pressure expands or contracts the spring seat for fine tuning
  • Available as a remote mounted knob and reservoir on a fluid hose, or a combined single-unit HPA assembly
  • Ideal when traditional preload wrenches are hard to use — see our preload wrenches

Recommended Pairings

Consider matching HPAs with Suspension Tools for installation and on-trail adjustments.

Shop Hydraulic Preload Adjuster (HPA)

Browse HPA assemblies and remote kits to make spring preload adjustments fast, safe and repeatable.