CushCore is made from a cutting edge material that does things no other foam can do. It has both low density and superb impact resilience. The material is also waterproof, compatible with Tubeless tire sealant, and tuned for appropriate rebound feel. Its ability to withstand repeated impacts without damage is more typical of foams that weigh twice as much.
Each CushCore insert is born in an aluminum mold, a manufacturing process which allows us to create the unique, patent-pending shape. The shape helps secure the tire to the rim, and extends well beyond the rim flange to protect against impacts from all angles. CushCore's special shape also creates the lateral force against the tire sidewalls that gives CushCore the cornering stability and calm ride feel it's known for.