The valves you need to upgrade to Tubeless These rim valves are crucial in upgrading your Tubeless Ready (TLR) Bontrager wheels to the next level of dependability and performance Product details To be used exclusively with Bontrager Tubeless Ready (TLR) wheels Use only with Bontrager TLR rim strip with round base Required for Bontrager's Tubeless Ready (TLR) system set-up A removable valve core for easy sealant filling Sold as singles