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The H&R 60mm I.D. race spring, 100mm long with a 90 N/mm (514 lbs/in) rate, is part of H&R's extensive 60mm program made from lightweight (hf) 54SiCr6 spring steel. H&R's high‑strength wire lets them use thinner coils to reduce weight while offering roughly 10% more travel than many competitors. Springs are factory pre‑blocked to resist setting or sagging, and the lineup provides many length and rate options for accurate tuning in racing and high‑load applications.
H&R 60mm ID Single Race Spring Length 100mm Spring Rate 90 N/mm or 514 lbs/inch
