[mister_bin]

Yeah i doubt its the tire shine.. i have 4 tires and i put tire shine on all for of them.. and i use poor boys tire shine it looks like armor all but i called up my distributor and they said its not... if it was the tire shine it would have been on all 4.. Plus my dad has the exact same tires as me on his car and has had them for longer and uses the same stuff and no cracks..

I took them off and the tires are defective... the rubber has become so soft/brittle i can peel chunks of it off with my hands.. both on the side wall and on the actuall tread... (and i dont put tire shine on my tread) and yet the rears are in perfect condition...