Surprising then that they only lasted 24k km  What car do you drive and you drive aggressively, do you? I personally now use Maxxis Victra I-Pro for this size and I find it best value for money but the tread wear rating is even lower than ATM2. This Maxxis is performance tires while the ATM2 is touring tires. So if durability is your main priority, I am not sure if the Maxxis will last longer but performance wise it is better than ATM2 (I've used ATM2 as well for a short time).