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The H&R 60mm I.D. race spring is a single 120mm main spring with a 120 N/mm (≈685 lbs/in) rate built for motorsport tuning and precise suspension setup. Manufactured in Germany from (hf) 54SiCr6 lightweight spring steel, these 2.50" I.D. springs use high‑tensile wire for thinner coils, roughly 15% less weight and about 10% more travel than many competitors. H&R offers broad lengths and rates plus tender springs; all are pre‑blocked to resist setting for durable track use.
H&R 60mm ID Single Race Spring Length 120mm Spring Rate 120 N/mm or 685 lbs/inch
