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The H&R 60mm I.D. race spring, 140mm long with a 300 N/mm (1,714 lbs/in) rate, is crafted in Germany from special lightweight (hf) 54SiCr6 spring steel as part of the 2.50" I.D. program. H&R’s high-tensile wire enables thinner, lighter coils with increased travel compared to many competitors. The comprehensive 60mm range provides many length and rate combinations plus tender spring options, and mains are pre-blocked to resist sag and support reliable tuning.
H&R 60mm ID Single Race Spring Length 140mm Spring Rate 300 N/mm or 1714 lbs/inch
