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The H&R 60mm I.D. race spring, 130mm long with a 10 N/mm (57 lbs/in) rate, is produced from H&R's lightweight (hf) 54SiCr6 spring steel. That material and manufacturing enable thinner wire, lowering mass and providing increased travel versus many competitors. These springs are factory pre‑blocked to prevent setting or sagging, and the extensive 60mm lineup supplies numerous lengths and spring rates to support precise suspension tuning for track and street applications.
H&R 60mm ID Single Race Spring Length 130mm Spring Rate 10 N/mm or 57 lbs/inch
