Zipp Tubeless Kits Everything You Need to Go Tubeless Riders converting their Zipp wheels to tubeless need the right parts to get an airtight seal that holds. This kit gives you the tape and valves sized specifically for your rim so you are not guessing at compatibility. Rim tape width matters: too narrow and sealant finds its way through the spoke bed; correct width and the seal holds session after session. The universal valves include removable valve cores, so you can inject sealant through the stem without pulling the tire. Get the right kit for your rim, set it up once, and stop thinking about it. Features Rim-specific sizing tape and valve dimensions matched to your Zipp rim for a reliable airtight seal Tubeless rim tape seals spoke holes and creates a smooth bead seat across the rim bed Universal tubeless valves with removable valve cores allow sealant injection through the stem and straightforward core cleaning or replacement Valve core wrench included torques the core properly without risk of cross-threading or overtightening | Zipp | Tubeless Kits 26Mm Wide Kit, 66Mm Valves (Fits 303, 303S)