H&R hrsZF025-9.5

The H&R 60mm I.D. race spring is a single 25mm spring with a 9.5 N/mm (54 lbs/in) rate, offering a compact option for custom suspension tuning. Built in Germany from lightweight (hf) 54SiCr6 spring steel, H&R’s 60mm family emphasizes lower mass and increased travel—about 15% lighter and roughly 10% more travel compared to competitors. These springs are factory pre-blocked so they won’t set or sag, and the 60mm program supports Euro-spec applications such as Porsche GT3.

H&R 60mm ID Single Race Spring Length 25mm Spring Rate 9.5 N/mm or 54 lbs/inch