KYB rear shock spring for VARG MX and EX. 46 N/mm — soft setting for the Stark VARG EX. Choose the spring rate that matches your weight and riding style for ideal suspension balance. Stiffer springs (higher N/mm) suit heavier riders or aggressive riding; softer springs improve small-bump compliance for lighter riders. Genuine OEM-spec spring, drop-in replacement on the KYB rear shock. Original spring settings: VARG EX Soft: 46 N/mm VARG EX Medium: 48 N/mm VARG EX Hard: 50 N/mm VARG MX Soft: 54 N/mm VARG MX Medium: 56 N/mm VARG MX Hard: 58 N/mm