CushCore pioneered the tubeless tyre insert. There are several benefits to the system. The inserts allow you to run lower pressures in your tyres for more grip - up to 35% more sidewall stability. CushCore also provides impact protection which saves your rims and helps to stop pinchflats. This all adds up to a more reliable wheel & tyre setup that reduces impact force and gives you more grip. It's worth getting the kettle on before you install them. It's not easy but it's worth it!