The GPM BBS001B Brass Spacer Set is designed to sit inside the coil spring and add measured mass for steadier rebound and compression on shocks with a spring inner diameter of 13mm, a damper rod diameter of 3mm, and a ball end outer diameter of 7mm.
Each spacer is crafted from brass and weighs 5g, giving springs extra momentum control and helping to maintain preload during rough runs. These inserts are well suited to modelers tuning ride feel and mid-corner stability.
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