The first step is separating service condition from setup and valving direction.
Separate friction from damping
Small-bump harshness can come from sticky fork seals, worn bushings, contaminated oil, misalignment or damping that is too restrictive at low shaft speeds. The fork has to move freely before clickers or valving changes can be judged.
Setup direction
If service condition is sound, check spring balance, fork height and compression bleed. A fork that rides too low can feel harsh because it sits in a firmer part of the stroke, while too much low-speed compression can stop initial movement.
Workshop checklist
- Inspect fork alignment, seal drag and bushing condition before changing settings.
- Measure sag and fork travel used on the same small-bump section.
- Test compression clicker changes without altering rebound at the same time.
- Refresh oil if the harshness is paired with inconsistency or poor rebound control.
Next step
Use the calculator for stack comparison, the handbook for deeper theory, or the workshop booking form when the bike needs service or valving work.