The AST linear race spring is a single 140mm coilover spring with an 80 N/mm rate and a 61mm inner diameter. Its linear profile maintains a consistent spring rate through travel for predictable handling and controlled ride-height adjustments on coilover systems. Supplied individually as part of AST’s Linear Race range, it’s aimed at tuners seeking precise suspension balance and accurate corner-weighting.
AST Linear Race Springs - 140mm Length x 80 N/mm Rate x 61mm ID - Single