Stans no tubes universal tubeless valves pairweighing half as much as stans brass version, these alloy tubeless valves are the ideal choice to pair up with your tubeless ready stans bst or bst r mountain bike rims. Also compatible with many other rims on the market, their removable core simplifies the process of setting up your tubeless wheels.reasons to buy lightweight. Easy setup.features pack of two removable core for easy inflation includes cap and nut weight 8g eachfits most tubeless wheels rims, including stan's notubes ztr rims wheels sun ringle wheels featuring notubes bst wtb tcs rims wheels ust wheels including crankbrothers, fulcrum, mavic, shimano bontrager tubeless ready rims wheels with bontrager's tubeless ready rim stripinstallationremove included valve cap and nut, insert valve through rim, thread nut on to valve and tighten by hand.buy stans no tubes joe's wheels tyres from chain reaction cycles, the world's largest online bike store.