H&R 2.50” I.D. 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 thickness. Manufactured using advanced materials and technology, H&R 2.50” I.D. Race Springs are crafted from special 54SiCr6 spring steel and, for any given spring rate, are on average 15% lighter and have 10% more travel than competitors springs. Main springs range from 6” to 16” in length and are available in a wide selection of spring rates.

Tender Springs
H&R’s 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 take a set or sag.

H&R 60mm I.D. Race Springs
H&R 60mm I.D. Race Springs are crafted from special 54SiCr6 spring steel and are one of the most comprehensive line of race springs in the U.S. 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 and tender springs includes main springs ranging from 100 mm to 300 mm (25.4 mm = 1 inch) in length and 30 N to 700 N (N / mm x 5.709 = pounds / inch) in spring rate. Tender springs vary in length from 40 mm to 130 mm, with many spring rates available.

Tender Springs
H&R 60mm I.D. Tender Springs are made of trapezoidal (flat rather than round) spring wire for a low block height and 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 take a set or sag. Also available are H&R inside and outside locating spring retainers.