AST astAST-300-40-61

AST linear-rate coilover spring in a 300mm length with a 40 N/mm rate and 61mm inner diameter, sold singly for suspension tuning. Its linear spring action ensures consistent compression across travel for predictable handling and accessible ride-height tuning. Select this single spring for coilover assemblies that accept a 61mm ID and call for a 40 N/mm rate.

AST Linear Race Springs - 300mm Length x 40 N/mm Rate x 61mm ID - Single