Shock setup affects how consistently the tyre stays loaded and driving forward.
Why traction breaks loose
Rear wheel spin often starts when the shock cannot keep the tyre loaded consistently. Too much compression can deflect the rear, too little rebound control can let it unload, and too much rebound can make it pack into a lower, harsher part of the stroke.
Setup direction
Begin with rear sag, spring rate and tyre condition, then tune rebound for recovery and compression for drive grip. The best setting lets the wheel follow chop while keeping enough chassis support to drive forward.
Workshop checklist
- Confirm rear sag and chain adjustment before judging traction changes.
- Watch whether the rear kicks up, squats too far or skips sideways under throttle.
- Test rebound changes in repeated bumps before altering valving direction.
- Record track surface and tyre pressure with each traction note.
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.