CushCore is a precision-engineered foam tire insert that absorbs impacts, reduces vibration, and improves lateral stability, delivering a smoother, more controlled, and faster ride Features The system is designed to be used with tubeless-ready or tubeless converted rims and tires, and is compatible with tubeless tire sealants The insert divides the inner volume of the tire in half, maintaining air underneath the tread and the foam insert next to the rim The original full-performance version: CushCore PRO allows you to push the limits of your tires and suspension to new levels CushCore Pro is well suited for trail, enduro, and downhill disciplines CushCore allows suspension to work more efficiently by requiring less travel to absorb bumps Includes 44mm CushCore presta air valve, valve core tool, instructions, and rim stickers Fits tire widths of 2.1 - 2.6?, and rims with internal widths of 22 - 35mm