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

H&R 2.5" I.D. Race Springs — Lightweight 54SiCr6 Steel Brand: H&R Engineered in Germany for motorsport and high-performance applications, the H&R 2.50" I.D. Race Springs use premium 54SiCr6 high-tensile alloy to deliver exceptional strength with reduced mass. Thinner wire construction yields on average 15% lighter springs and 10% more travel than comparable products. Key Features Material: Special lightweight (hf) 54SiCr6 spring steel Performance: Higher tensile strength allows thinner wire and improved response Range: Main springs 6"–18" (also available in extensive 60mm I.D. program: 80mm–300mm) Rates: Wide selection; 25 N–700 N in 60mm I.D. lineup Tender Springs: Trapezoidal wire, low block height for maximum travel Durability: Factory pre-blocked to prevent setting or sagging Ideal for track, race, and precision tuning—especially Euro-spec cars like the Porsche GT3—H&R's comprehensive spring program offers the lengths and rates needed for optimal setup and control.