Just wondering why the recommended non S02 rear tyre profile is 45 as opposed to the stock 50? Will this not exaggerate the already massive wheel arch gap on stock suspension? Would it be detrimental to just go with the 245/50?

Cheers

 

45 is stock isn't it?

 

Nope. If you're talking profile, the OEM SO2s are 55 front and 50 rear. As for width, the OEM rear is a 225 but, if fitting non SO2s, a 245 should be fitted. (Assumes we're only talking pre MY04s with 16" wheels)

 

Yep I will fit a 245 but im talking about why the profile goes down from a 50 to a 45 as recommended in the tech FAQ?

 

Probably because the reduction in the profile matches the increase in the width. Just remember the profile is a percentage of the width so 45 of 245 is probably the same as 50 of a 225. I couldn't be bothered to do the maths to check.

 

110 vs. 112 (45 vs. 50)

If you kept the same profile and increased width it would equal 122.5

 

Was just about to say exactly the same thing Rahul.

 

so you saying the fitting of "other rear tyres " should be 245/45/16 ?

 

YES!

To preserve rolling radius (i.e. speedo accuracy, gearing, etc...), then as the width of tyre increases, the 'profile' of tyre needs to decrease.

245/45/16 means:-

245mm wide tyre
sidewall is 45% of tyre width
16" wheel

 

Got it, thanks guys!