My stock front has 11,000 miles on it and looks good considering. The stock rear was done at 4500 miles. Replaced her with the Avon ST (AV46) and have put 6500 miles on it so far. The Avon still looks good and should hit 10,000. This tire does like to wander when exiting corners hard and braking hard but thats the trade off with any ST (Sport Tourer). And to Rocket1, 20's are Bridgestones BT20's