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The H&R 60mm I.D. race spring, 100mm long with a 10 N/mm (57 lbs/in) rate, is part of H&R's 60mm program crafted from lightweight (hf) 54SiCr6 spring steel. H&R's alloy and manufacturing let them use thinner wire for reduced weight and increased travel versus many competitors. Each spring is pre‑blocked at the factory to prevent setting or sagging, and the program's wide range of lengths and rates supports custom suspension tuning for track and street applications.
H&R 60mm ID Single Race Spring Length 100mm Spring Rate 10 N/mm or 57 lbs/inch
