RockShox Upper Crown for Boxxer D1 48 offset 27.5/29 tall Diameter-43/64 Available with World Championship proven

Available with World Championship proven TNT bead technology

Fast rolling1 thanks to the combination of the new Tubeless Ready design and Michelin GUM-X compound in comparison to the Michelin PRO4 Endurance

superior heel hold and a excellent foot wrapping that enhances ski control

Optimized for j-bend spokes Scalloped flange design distributes stress more effectively than a simple round shape more effectively Optimized flange width for enhanced bracing angles

} Freehub bodies for WTBs Frequency hub

RockShox Upper Crown for Boxxer D1 48 offset 27.5/29 tall Diameter-43/64 Available with World Championship provenRockShox, Fork CSU Upper Crown 38mm, Black 38mm Boxxer D1+(2024+) TECH SPECS Misc 48 offset 27. 5 29 tall