Hi I have not long got my 190 Quattro and would like to know does it make a difference the the tyres are different make front and back? The front tyres are Goodyear Excellence and the back tyres are Avon zz3, the tyres front and back are not the old should I have the same make front and back? Tyres depths are as follows NSF 7,8mm OSF 6,8mm NSR 6,5mm OSR 6,5mm. Any help would be greatfull Nozdog
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