The AST Linear Race Spring is a single linear race spring with a 120 mm active length, a 440 N/mm rate and a 61 mm inside diameter, supplied individually. It delivers one of the firmest linear responses suitable for extreme track and competition applications where a high spring rate is required. Sold individually, this spring is for assemblies that require a 61 mm ID and a 440 N/mm rate; verify fitment with your damper and perch before installation.
AST Linear Race Springs - 120mm Length x 440 N/mm Rate x 61mm ID - Single