PAC Racing Springs 7 Degree Valve Lock - 8 mm Valve Stem - 0.050 in Less Height (Set of 16) FTH2002007174 the RS7-K is the karting-only

the RS7-K is the karting-only version (non-fire retardant

and the price

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PAC Racing Springs 7 Degree Valve Lock - 8 mm Valve Stem - 0.050 in Less Height (Set of 16) FTH2002007174 the RS7-K is the karting-onlyProduct Description: Valve Lock 7 Degree 8 mm Valve Stem 0. 050 in Less Height Steel Natural Set of 16 Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel and increasing weight from traditional methods.