CushCore is an engineered foam insert to be mounted inside a tire, designed to absorb impacts, reduce vibration and increase lateral stability. These characteristics translate to a more controlled, comfortable, and faster ride.The original full-performance version: CushCore PRO allows you to push the limits of your tires and suspension to new levelsCushCore Pro is well suited for trail, enduro, and downhill disciplinesCushCore allows suspension to work more efficiently by requiring less travel to absorb bumpsTire inserts help to protect the rims and prevent flat tiresReduce shock and vibration over rough terrainCushCore inserts increase lateral stiffness for faster cornering, with better traction and a consistent feelFreedom to run lightweight tires with supple, fast-rolling casings without compromising lateral stability or impact protectionCushCore PRO fits tire widths 2.1 to 2.6 and inner rim widths 22mm to 35mmWeight: 260 gThe system is designed to be used with tubeless-ready or tubeless converted rims and tires, and is compatible with tubeless tire sealantsThe insert divides the inner volume of the tire in half, maintaining air underneath the tread and the foam insert next to the rimValve stem included CushCore Foam Tire Inserts - Singles Tubeless Conversion Kits UPC: 701822997683