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The AST Helper Spring is a set of two auxiliary springs measuring 70mm long with a 65 N/mm rate and a 61mm inner diameter. Supplied in pairs, these higher-rate helper springs provide substantial auxiliary support for coilover assemblies that use 61mm spring seats. The 70mm length and 65 N/mm rate suit installations where firmer assist is needed alongside primary springs during setup.
AST Helper Springs - 70mm Length x 65 N/mm Rate x 61mm ID - Set of 2
