Motorcycle Fork Compression Adjuster Parts

If your motorbike has modern "Separate Function Forks", you probably have a comp adjustment clicker on one top cap & reb on the other, but for many adjustable designs both caps have compression damping adjusters - learn more about open or closed chamber front forks. If you've never adjusted your dampers, read our clickers article - they're like opening or closing a tap for more or less suspension oil to flow.

Adjuster assemblies are compact but complex, each top cap has a clicker assembly & a bleed screw, sealed against the fork tube with an o-ring. A centre shaft is screwed underneath with a free piston sliding up & down it, with inner & outer seals plus bushes to prevent oil getting past. An Inner Chamber Spring presses between the top cap & this sliding piston - helping set the initial fork plushness - so changing how strong the ICS is will make the forks feel softer or firmer at the beginning of the stroke.