Mismatched Tyres
06 October 2006, 09:42 AM
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Mismatched Tyres
I have been given two Avon ZV3 235/40 ZR17 tyres which I was thinking of fitting to the rear axle of an 02 WRX Bugeye. The front treads are Bridgestone Potenza's 225/45 ZR17. Does anybody know what effect/s (if any) this tyre mismatch could have on the car and if this was an ok thing to do???
06 October 2006, 05:48 PM
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That gives too much difference between the two.
Tyre height of 93.6 mm for the 235/40, versus tyre height of 101.25 mm for the 225/40, just under 8 mm difference. That's far more than the 1 mm difference that Subaru recommend as the limit.
Even if we asumed that their 1 mm suggestion was unnecessarily conservative there's no way that 8 mm would do the centre diff any good, quite apart from any effects on handling caused by the different characteristics of the tyres.
Tyre height of 93.6 mm for the 235/40, versus tyre height of 101.25 mm for the 225/40, just under 8 mm difference. That's far more than the 1 mm difference that Subaru recommend as the limit.
Even if we asumed that their 1 mm suggestion was unnecessarily conservative there's no way that 8 mm would do the centre diff any good, quite apart from any effects on handling caused by the different characteristics of the tyres.
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