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The H&R 60mm I.D. race spring is a single main spring (300mm length, 40 N/mm or 229 lbs/in) for fine suspension tuning in track and competition applications. Manufactured in Germany from lightweight (hf) 54SiCr6 spring steel, the 2.50" I.D. series is typically 15% lighter and provides approximately 10% more travel than comparable springs. Springs arrive pre‑blocked to resist sagging; H&R's 60mm I.D. program includes many lengths and rates, tender spring options, and coverage that includes Porsche GT3 and other Euro‑spec cars.
H&R 60mm ID Single Race Spring Length 300mm Spring Rate 40 N/mm or 229 lbs/inch
