Well the Metzler was bald and steel cords poking through (4452 miles) So thought I would give the car tire a try! Its definately different! but after about 30 miles, barely noticeable! I have not pushed it really hard into the corners yet! But a light graze of the feelers under the pegs! no problem! only time I really felt the difference was very slow speed! but nothin that was un managable! on another note! my Dealer has a new roadster in the showroom! I really like the new foot peg location! hopefully a retro kit is offered! will be my next purchase!