#87320 - SHOCK SPRING SET (HARD/CUP RACER)

HPI Racing now offers a Hard Shock Spring Set that gives Cup Racer cars a wide variety of tuning choices to dial in the handling of their cars to track conditions. The set features 3 pairs of color coded springs for easy identification:

Black (one step softer than the gold kit springs) Blue (one step harder than the gold kit springs) Pink (two steps harder than the gold kit springs) Add the #87171 Soft Spring Set to get these additional tuning steps: White (one step softer than the copper kit springs) Silver (one step harder than the copper kit springs) Gray (two steps harder than the copper kit springs)