This 3Racing shim set is intended for racers who need repeatable, fine-grain changes to shock top mount height. The aluminium construction provides consistent thickness and stiffness for predictable setup adjustments.
Introduce these shims at the shock tower mount to alter top mount geometry; small increments can shift roll stiffness and weight transfer. For track settings, change one corner at a time and log results to refine balance between understeer and oversteer.