The AST Linear Race Spring is a single 140 mm suspension spring with a linear 300 N/mm rate and a 61 mm inner diameter. It provides predictable linear response to assist accurate spring-rate tuning, helping achieve target ride height and handling balance. Intended for coilover-style suspension applications, the spring supports consistent compression behavior for repeatable setup outcomes.
AST Linear Race Springs - 140mm Length x 300 N/mm Rate x 61mm ID - Single