Front might be 5 months since replace. Nothing in the tread, nearly new tyre.
No tyre has ever been found to have been damaged,
They just deflate for no good reason, then tube is ruined.
Sometimes i leave on Sunday, come back to work Tuesday, flat.
Most go flat just after turning off landing. This last tyre i checked pressure 3 days ago. Set at 38psi.
But have seen table that suggested as high as 50 psi.