H&R hrsZF080-12.5

The H&R 60mm I.D. race spring, 80mm long with a 12.5 N/mm (72 lbs/in) rate, is crafted from special lightweight (hf) 54SiCr6 spring steel. H&R's production uses high‑tensile alloy allowing thinner wire, which yields lighter springs with increased travel versus many competitors. Each spring is factory pre‑blocked so it won't set or sag, and the 60mm program offers a wide range of lengths and rates for tailored tuning in motorsport or performance street setups.

H&R 60mm ID Single Race Spring Length 80mm Spring Rate 12.5 N/mm or 72 lbs/inch