still pondering over wat tyres i should use.....after my china brand tyres....opc....looks brand new but i heard the tyres over long period will detiorate...n mus change.its call firenza st-08....im using oz ultraleggra 16 inch....firenza seems ok 4 me...but is there other option???plz advise guys...budget is 100 per tyre??can i get anytink good from it??hows federer??hunting for quiet tyres , not a racer...