AOA!!dear it's my vitz new yokohama-A drive,front tyre 185/65r14 almost 5000 km driven,,I changed the tyres 3 months ago,,i usually maintain its pressure to 34 psi contrary to recommended 30 psi but I recently saw the crack which i think due to caused by a sharp metallic piece...plz tell should I change the tyre?and is it possible for new japanese tyre to damage in a very short time?

