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The AST 220mm linear race spring with a 45 N/mm rate and 61mm inner diameter is sold individually for coilover conversions requiring extra free length. Its linear spring characteristic ensures predictable compression across travel, supporting consistent ride-height control and repeatable handling for drivers tuning suspension for track or spirited street use.
AST Linear Race Springs - 220mm Length x 45 N/mm Rate x 61mm ID - Single
