How to Successfully Mount Tubeless Mountain Bike Tires
First, remove the old tube from the tire. Next, clean the rim and apply tubeless tape to cover the spoke holes. Install the tubeless valve in the valve hole and tighten it securely. Then, install the bead of the tire onto the rim by pushing it onto the rim gradually until it is fully seated, making sure the valve is through the rim and the bead is in the center. Finally, use a compatible tubeless floor pump to inflate the tire and ensure that the bead pops into place and seals tightly around the rim.