KCNC's lightweight valve extenders are a valuable asset to anyone using deep-profiled rims. Of course they're necessary for most carbon wheels, but they can also get you out of a pinch. Place one in your saddle bag for those crisis moments when you find yourself (or your buddy) without a tube of the appropriate valve length.
Each purchase includes a pair of matching valve extenders.
Before installing KCNC valve extenders, ensure that the tube's presta valve is fully open. We recommend wrapping Teflon tape on the threads just below the valve for increased life and a greater seal.