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The H&R 60mm I.D. race spring is a single race spring built for track and high-demand use — 180mm length with a 130 N/mm (743 lbs/in) rate. Produced in Germany from lightweight (hf) 54SiCr6 spring steel, the high-tensile alloy permits thinner wire for lower mass and increased travel compared to many rivals. Springs are factory pre-blocked to resist sag; H&R’s 60mm series includes many lengths and tender springs for tailored tuning.
H&R 60mm ID Single Race Spring Length 180mm Spring Rate 130 N/mm or 743 lbs/inch
