Topeak upgrade kit threadlocksimple effective and versatile this topeak upgrade kit threadlock fits to the majority of rubber pump hoses to provide inflation to presta or schrader valves thus bypassing the need for additonal adapters or parts small lightweight and compact this upgrade kit threadlock is perfect for topeak joeblow ace joeblow sport ii joeblow max hp joeblow mountian and joeblow max ii featuresmaterial cnc aluminiumhead smarthead threadlockfits presta and schrader