The stans no tubes standard tubeless kit converts your existing wheel set to tubeless allows you to use either standard or tubeless tyres the kit fits most standard mountain bike rims 215 mm 245 mm wide with two moulded rim strips with presta removable valve cores contains one pint of tyre sealant with a 60 g scoop and spout one 9 meter 10 yard roll of stans rim tape notubescom decal and detailed instructions