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The H&R 60mm I.D. race spring is a single 120mm main spring with a 160 N/mm (≈913 lbs/in) rate for precise suspension tuning. Manufactured in Germany from (hf) 54SiCr6 lightweight spring steel, the 2.50" I.D. design uses thinner high‑tensile wire to deliver roughly 15% less weight and nearly 10% more travel than many competitors. H&R’s comprehensive 60mm program includes many lengths and rates plus tender springs; all main springs are pre‑blocked to resist settling.
H&R 60mm ID Single Race Spring Length 120mm Spring Rate 160 N/mm or 913 lbs/inch
