The CeramicSpeed Preload Ring delivers precision fitment for SRAM DUB crank systems without adhesive. Its internal O-ring secures the spindle connection while metal threads enable precise preload adjustment. The minimalist design eliminates crevices where dirt accumulates, keeping your drivetrain cleaner. Compatible across all DUB crank and bottom bracket combinations, it includes both 1mm and 3mm spacers matched to your BB's outer diameter for a refined, integrated appearance.