Dialing in a fresh tubeless build the night before a race leaves no time for fiddly parts, and the Tubeless Valve Stem Kit for Clik Valve is a machined aluminum tubeless valve stem kit with the valve cores already installed. The stems fit rims drilled for Presta valves and work with Schwalbe Clik pump heads only, in 44 and 60 millimeter lengths. What Our Gearhead(R) Experts Are Saying:"A season of pressure checks before every ride taught me to keep a Clik pump head on my floor pump, because a Presta head only works as a stopgap on these stems. The cap doubles as the core removal tool, so I stopped carrying a separate one. They dropped into my Presta-drilled rims with no new holes."