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The H&R 60mm I.D. race spring (100mm length, 110 N/mm) is a single main racing spring made from special 54SiCr6 spring steel. Built in Germany with extremely high-tensile wire, the thinner construction yields roughly 15% less weight and about 10% more travel than many competitors, giving tuners increased adjustment range and sharper handling. Main springs are factory pre-blocked to prevent setting or sag. The 60mm program offers many lengths and rates and includes tender springs suitable for motorsport and Euro-spec cars like the Porsche GT3.
H&R 60mm ID Single Race Spring Length 100mm Spring Rate 110 N/mm or 628 lbs/inch
