Flap
-
FLAP
Flap is installed between the inner tube and the rim, the middle part is thicker, and the two edges are thinner from inside to outside. There is a center line on the outer surface of the flap for the main line during installation. There is also a hole on the center line for the inner fetal air valve mouth to pass through. The backing tape does not require high physical and mechanical properties of the rubber, but it should have good aging resistance. Tubeless tires fixed to deep rims and ultra-low pressure tires fixed to rims with special structures do not need falp due to tight fitting.