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The H&R 60mm I.D. race spring is a single main race spring (100mm length, 300 N/mm) for precision suspension tuning in track and aggressive-street applications. Built in Germany from lightweight (hf) 54SiCr6 spring steel, these springs are on average 15% lighter and provide about 10% more travel than many competitors. H&R's 60mm program ranges 80–300mm in length and 25–700 N/mm in rates, with tender springs and factory pre-blocking to prevent sag.
H&R 60mm ID Single Race Spring Length 100mm Spring Rate 300 N/mm or 1712 lbs/inch
