No flats joes eco tubeless system xcfits xc rims 26 and 29 17 19mm inner rim width colour coded blue joes tubeless rim strips are specifically designed to secure the tyre 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 tyres to tubeless and keep you riding tubeless for years features240 ml joes eco sealant wi