I positively love the Angel GT's on my ST 1300, and they lasted me around 12-13k miles. The feel planted, I can lean the bike over as far as I want, and the grip is great in the wet. But I am not riding it like you must - and I don't usually try to keep up with anyone else - especially not crotch rockets. Tire mileage is very much a function of how you corner and how fast you accelerate and brake. Remember the old advertisement about such and such a car owned by a little old lady who only drove it to and from church on Sunday? Bet she NEVER had to change her tires.