Delighted with our ATR's which are running on a Discovery 4. They offer the same road noise as Scorpion Zero's but have far better wear characteristics, are tougher so less likely to puncture, handle very well (on and off road) and look good. I guess they are good for up to 40,000 miles which is double what the Zero's managed. At the mileage we cover that saves us £400 a year.