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 main and tender springs includes main springs ranging from 100mm to 300mm (25.4mm = 1 inch) in length and 30 N to 700 N (N/mm x 5.709 = pounds/inch) spring rates. Tender springs vary in length from 40mm to 130mm, with many spring rates available.
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 set or sag. Also available are H&R inside and outside locating spring retainers.