RockShox Rear Shock Bearing Adapter Upgrade Kit - 8X30 23mm Od (Convert Standard Du Bushings To Bearings On 8X30 Frames) - Deluxe,Superdeluxe B1+(2023+),Sidluxe A1+(2021+)RockShox: The Rear Shock Bearing Adapter Upgrade Kits replace the standard DU bushing mount with bearing hardware. Designed to fit frames that use 8mm ID x 30mm wide hardware. Features Reduces friction to provide smooth, low maintenance ride performance 23mm bearing adapter upgrade kit is compatible with Deluxe C1+(2023+), Super Deluxe B1+(2023+), SIDLuxe A1+(2021+) DAMPER BODY ONLY rear shocks. Requires 22mm open end wrench for installation and