RSTT alloys

[Erf]

Hi Guys,

Might be a dafte question, but...

I've just agreed to but a set of RSTT's that were being sold in teh classified section, but just noticed the tyre sizes are different. Two are 225 40 18 and the other two are 225 45 18. Is that going to cause me an issue?

Thanks.

 

[Jay A3]

Both sizes look the same to me

 

[hades-]

yep and to me

 

[Sidey]

Hi Guys,

Might be a dafte question, but...

I've just agreed to but a set of RSTT's that were being sold in teh classified section, but just noticed the tyre sizes are different. Two are 225 40 18 and the other two are 225 40 18. Is that going to cause me an issue?

Thanks.

 

[Vex182]

Typo in the sizes?

 

[Jay A3]

i wonder if he meant 235 40 18 or 225 45 18?

 

[Erf]

Sorry typo! 225 40 18 and 225 45 18!!!!

Apologies!

 

[S3-Si]

Its been a long day, but I don't see any typo?

 

[Erf]

I edited the original post to correct the typo.

 

[Jay A3]

Now all our posts look out of place!

 

[Routledge]

Now all our posts look out of place!

I thought this.

It doesn't matter if they have different tyre sizes on the front to the back.. Just as long as they match on the axles.

 

[Alex C]

Sorry typo! 225 40 18 and 225 45 18!!!!

Apologies!

that is a ~10cm difference in rolling circumference which is quite a bit. I wouldn't run that.

 

[Erf]

that is a ~10cm difference in rolling circumference which is quite a bit. I wouldn't run that.

Buggery...

 

[.Ben.]

Buy some part-worns from eBay in the correct sizes?

 

[<tuffty/>]

different rolling radius from front to rear will cause issues with ESP and haldex... the speed sensors will see the one set of wheels going faster than the others and potentially misinterpret this as wheelspin..

<tuffty/>

 

[Erf]

Thanks for all the replies guys. Will stick to stock 17" Avus alloys and get them refurbed.

 

[Daniel M]

Just a quick one related to this, will having say two 225/45/17 tyres and two 205/45/17 tyres cause any problems?

 

[<tuffty/>]

Just a quick one related to this, will having say two 225/45/17 tyres and two 205/45/17 tyres cause any problems?

If the rolling radius is different then yes...

<tuffty/>

 

[Daniel M]

If the rolling radius is different then yes...

<tuffty/>

Ah might need some new tyres then as Ive just discovered my rears are wider than the fronts?! (done before I bought the car). Also what would be the correct width tyre for a 17'' RSTT? 225 or 205?

 

[Alex C]

standard s3 rims are 17" 7.5" wide. -- 225/45