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as far as the rim width goes you will get away with it if you run the same sized tired on front and backs to keep the ATTESA happy

just to clarify, he's get away with the same sized tire in this instance as there is only half an inch difference in rim width but the rule of thumb for attessa is same overall rolling diameter

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should be apples, there are stacks of tyre size and rolling diameter calculators on the net that you can use - check to see that the rolling diameter front to rear is the same and you won't have the attessa kicking up a fuss.

it's generally just easier to run same wheel and tyre specs front to rear, which is why most people do it, but there is nothing saying you have to

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225 and 235, different sizes so different rolling heights. i wouldn't want any more than about 3mm difference in rolling height front to back on my car and the difference between a 225 and 235 will be bigger than that

D.

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dave, don't forget his rear wheels are half inch wider. i'd think it would be ok (without checking, which i have recommended he does himself) but i'll admit you'll know more about tyres than i ever will :P

it also gets tricky if they are different tyre brands as there can be quite a variation in the way tyres bead up even though they say they are the same sizes

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been told by a mech, who had someone come in with different size rubbers.

he said at 80-100ks it would start to vibrate and almose feel like the back wheels are trying to overtake the front wheels.

so not a wise thing to do with the AWD system, it was on a series one stagea too.

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