Tubeless system - Challenge

We've selected the champions in bicycle puncture sealants.

Of the sealants we tested, we liked Joe's, clearly the fastest working sealant we've ever gotten our hands on. Joe's products are used by the best bikers in the toughest conditions.

Challenge is a young and dynamic family brand that develops and manufactures handmade tyres for performance cyclists. In its own factory, Challenge uses the best sourced natural rubber combined with the finest silk, cotton, polyester and latex to handcraft unique tyres that are appreciated by experienced professionals and enthusiasts of all levels.