The GPM BBS001B Brass Spacer Set is engineered to deliver consistent spring damping by adding defined mass within the coil. Compatible with shocks that have a spring inner diameter of 13mm, a damper rod diameter of 3mm, and a ball end outer diameter of 7mm, these spacers allow precise tuning of spring oscillation and preload retention.
Each spacer weighs 5g and is produced from durable brass to provide repeatable performance under load. Use these inserts as a simple, effective upgrade to refine handling and maintain spring stability across demanding runs.