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The H&R 60mm I.D. race spring, 105mm long with a 25 N/mm (143 lbs/in) rate, is manufactured from H&R's special lightweight (hf) 54SiCr6 spring steel. That material and precise German production allow thinner wire for lower mass and increased travel versus many competitors. Each spring is pre‑blocked at the factory to prevent setting or sagging, and the comprehensive 60mm program supplies a broad array of lengths and rates for custom suspension tuning in motorsport and performance street use.
H&R 60mm ID Single Race Spring Length 105mm Spring Rate 25 N/mm or 143 lbs/inch
