gear grinder...
I'm not familiar with pro roads so I can't comment on them. 2 - 3000km doesn't seem like much. my axial pros usually serve up about 3000 to 3500 miles (4800 - 5600km), but admittedly, sometimes a little thread is showing on the rear by then; I replace tires in pairs. I then use the old tires, on a separate rear wheel, on my trainer.
occasionally the items you order on-line or from catalogs is what is known as OEM material. nothing "really" wrong with it, but perhaps not the best quality or adherence to spec. I once ordered a set of tires on-line, and when I received them they were merely thrown in the shipping box and not banded with the normal manufacturer's packaging as they would be at your LBS. at the time I thought that was peculiar, but reasoned the on-line vendor was trying to save shipping weight. those tires sucked. maybe coincidence, maybe not, but they got scuffed, cut, and nicked more than any tire before or since.