H&R R25100100 2.5" ID Race Spring 10" Length 100 lbs/in.

ID Race Springs H&R 2.50" I.D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2.50" I.D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and are available in a wide selection of spring rates. TENDER SPRINGS: H&R 2.50" I.D. Tender Springs are made of trapezoidal (flat rather than round) spring wire and have a low block height for maximum travel. These springs are designed for demanding motorsport environments, and like all H&R springs, have been pre-blocked at the factory so they will never set or sag. The H&R 60mm I.D. Race Spring line is crafted from special lightweight (hf) 54SiCr6 spring steel and is the most comprehensive 60mm I.D. Race Program in the U.S. If you own a Porsche GT3 or another Euro spec car, our range of 60mm I.D. Race Springs has you covered. With hundreds of main springs and tender springs available, H&R has the lengths and rates necessary for optimal tuning and setup. The H&R complete line of 60mm I.D. main springs range from 80mm to 300mm (25.4mm = 1 inch) in length and 25 N to 700 N (N/mm x 5.709 = pounds/inch) spring rates. Allows custom tuning of your suspension (hf) 54SiCr6 Spring Steel, Lighter Weight, More Spring Travel made in Germany Wide variety of spring lengths and spring rates Tender springs available