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The AST 220mm linear race spring with a 40 N/mm rate and 61mm inner diameter is a single coilover spring that offers a slightly longer free length for setups needing additional travel or different ride height. Its linear rate provides a steady compression profile for consistent handling feel and ride-height control in track-oriented or performance street applications.
AST Linear Race Springs - 220mm Length x 40 N/mm Rate x 61mm ID - Single
