Stans no tubes universal 44mm valve stem pair road this core is needed for stans rim strips with presta removable valve cores features 44mm valve stem with removable valve core for easier inflation fits most tubeless road rims fits most tubeless rims stans notubes ztr rims and wheels campagnolo 2 way fit wheels corima tubeless wheels dt swiss tricon tubeless wheels fulcrum 2 ways fit wheels shimano tubeless wheels sold in pairs 2 in a pack including american classic wheels bontrager