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The H&R 60mm I.D. race spring, 75mm long with a 43 N/mm (246 lbs/in) rate, is part of H&R's 60mm program built from special lightweight (hf) 54SiCr6 spring steel. The alloy and precision manufacture let H&R use thinner wire for lower weight and roughly 10% more travel than many competitors. These race springs are pre‑blocked at the factory to resist setting or sagging and are offered in many lengths and rates for motorsport tuning, including Euro‑spec applications.
H&R 60mm ID Single Race Spring Length 75mm Spring Rate 43 N/mm or 246 lbs/inch
