hairline cracks on my tires

[arkircc]

i have goodyear tires with size of 185/55R15 and napansin ko may madaming hairline cracks sa sidewall at tread area, i think na sa 75% pa naman yun, ill check again yung manufacture date nun tires ko, di ko kasi makita nun una, kelangan ko na ba magpalit?

[1D4LV]

hairline cracks are a sign that the rubber is already brittle. medyo delikado na, imho lalo na kung highway speeds.
and big cracks start with hairline cracks.

[arkircc]

ok palitan ko na para sure, mukang luma na nga yung gulong eh, thanks