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The H&R 60mm I.D. race spring, 125mm long with a 30 N/mm (171 lbs/in) rate, is part of H&R's 60mm program manufactured from special lightweight (hf) 54SiCr6 spring steel. The high‑tensile alloy and production methods allow thinner wire for lighter springs and roughly 10% more travel than many competitors. Springs are factory pre‑blocked to resist permanent set or sag, and the program covers a broad range of lengths and rates for custom tuning in motorsport and performance street setups.
H&R 60mm ID Single Race Spring Length 125mm Spring Rate 30 N/mm or 171 lbs/inch
