Tyreinvader: all the advantages of tyre inserts without the down sidesWHY TYRE INSERTS WERE CREATED IN FIRST PLACE Tubeless tyres (with sealant) are surely helping to keep punctures to a minimum, but they don’t totally eliminate them. With the right force, especially on rocky terrain, it’s possible to pinch-flat a tubeless tyre, cutting the tyre by pushing it very hard against the rim.