The AST Linear Race Spring is a single linear race spring with a 120 mm active length, a 320 N/mm rate and a 61 mm inside diameter, supplied individually. It provides an aggressive linear rate for serious track and competition setups that demand precise spring behavior. Sold one at a time, this spring is specified for systems needing a 61 mm spring ID and a 320 N/mm rate; verify fitment with your damper and perch before installation.
AST Linear Race Springs - 120mm Length x 320 N/mm Rate x 61mm ID - Single