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The H&R 60mm I.D. race spring is a single main spring (300mm length, 25 N/mm or 143 lbs/in) for suspension tuning where longer spring travel is desired. Manufactured in Germany from lightweight (hf) 54SiCr6 spring steel, the 2.50" I.D. program is typically 15% lighter and provides roughly 10% more travel than comparable springs. Each spring is pre‑blocked to prevent setting; H&R's 60mm I.D. range includes many lengths and rates plus tender springs and coverage for Porsche GT3 and other Euro‑spec cars.
H&R 60mm ID Single Race Spring Length 300mm Spring Rate 25 N/mm or 143 lbs/inch
