H&R 2.5in ID Race Springs Lightweight 54SiCr6 Steel High Tensile Alloy

H&R 2.5" I.D. Race Springs — Lightweight 54SiCr6 High-Tensile Alloy Precision German engineering delivers race-proven suspension springs built from lightweight 54SiCr6 high-tensile spring steel. H&R 2.5" (60mm) I.D. Race Springs use thinner wire without sacrificing strength for reduced mass, quicker response and improved handling. Material: Special lightweight (hf) 54SiCr6 spring steel Weight advantage: ~15% lighter than comparable springs Travel advantage: ~10% more travel for the same rate Range: Main springs 80–300mm length (25.4mm = 1") Rates: 25 N–700 N (N/mm × 5.709 = lbf/in) Tender springs are manufactured from trapezoidal (flat) wire for a low block height and maximum travel — ideal for demanding motorsport setups. All H&R race springs are pre-blocked at the factory to prevent setting or sagging over time. With hundreds of main and tender spring options, the H&R 60mm I.D. Race Spring program supports precise tuning for Euro-spec performance cars including Porsche GT3 models. Choose H&R for lightweight construction, extended travel and consistent race durability.