I don't know how long before I got them but I fitted about a week after it arrived^ that’s not rough terrain, poor rubber compound or hard / old tyre.
600km but how long have they been sitting around ?
Yes it's a rear. I'm not worried. Just did both days of Bayview Blast on it. I'll keep going until I've worn it out or it falls apart.If that's a rear tyre, that's very good going for tread wear. My rear tyres get shredded after 400kms. It might be from a few causes, old tyre, faulty compound or it's had chemicals spill onto it at one stage of its life.