No flats joes xc tubeless conversion kitfits xc rims 26 and 29 17 19mm inner rim width color coded blue joes tubeless rim strips are specifically designed to secure the tire inside the rim with no loss of air from the rim weight 50 grams per strip including valve fits rims with frenchpresta valve hole openings this kit contains all you need to convert two 26 or 29 standard mountain rims and tires to tubeless and keep you riding tubeless for years features 240 ml joes super sealant