Hi folks - I bought 2x front and 2x rear of these for my new Giulia Quadrifoglio, b/c the stock Pzero Corsa's are useless in any snow condition. I am overall pleased w/ these Alpins as they are rather better in 'snow'. However, one of the 4 tires (I think it is one of the rear tires) was (keenly) noticed by my installer as slightly 'out of round'. He showed me on the balancing apparatus what he meant. Indeed, it is slightly out of round - and as such above 65mph I experience a not-insignificant sinusoidal vibration. I don't know if a re-balancing maneuver will solve the issue of out of the round tire...I doubt it b/c my 'tire guys' (who totally rock) balanced them initially and yet I have the vibration. That is to say, it is not a balancing issue - and on the balance machine - even I could perceive/see the out-of-roundness of that one tire. So I'll put up with it until spring when I switch back to my summer tires. My SIMPLETIRE experience (ordering/shipping etc.) was as always, A++.