after changing my back tyre, i noticed that after few weeks that my tyre started bending and a kind of folding.i need to know the cause.i have changed the tyre for two times now and at the same leg.
try increasing the pressure to decrease the bulge at the bottom but that is a normal condion on a bias ply tire.
tires don,t bend, rims bends. you might have a bent rim and your putting different tires on the same rim that,s bent.