Stans No Tubes Replacement Presta Valve Core | Bicycle Tubeless TechnologyReplacement valve core only.Replacement core for Stans No Tubes presta valve stems and presta valve equipped rim strips.Check out some other great products from Stans No Tubes below.Stans No Tubes Core Remover ToolStans No Tubes DART Tubeless Repair Refill (5)Stans No Tubes DART Tubeless Tire Repair ToolStans No Tubes Race Tire Sealant - 32ozStans No Tubes Regular Tire Sealant - 2oz BottlesStans No Tubes Regular Tire Sealant - 16oz BottlesStans No Tubes Rim Tape