[Euro] Rolling Euro Guards

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Originally Posted by aaronng

When you get 18s, what tyres size are you going to use? Are you going to keep the same rolling diameter as the stock 16"?

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at this stage its unsure, but wouldnt it be best to have the same rolling diameter?

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Originally Posted by Dru42

at this stage its unsure, but wouldnt it be best to have the same rolling diameter?

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Yes, keep it the same would be the best idea. What about the width? If you are keeping the width pretty similar to what you have now, then you shouldn't have rubbing when you switch from 16" to 18" rims as long as the offset is correct.

Quote:

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Originally Posted by aaronng

Yes, keep it the same would be the best idea. What about the width? If you are keeping the width pretty similar to what you have now, then you shouldn't have rubbing when you switch from 16" to 18" rims as long as the offset is correct.

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Either 215/40R18 or 225/40R18. The first size is slightly under original diameter and the second size is slightly over original diameter.

205/55R16 (Stock on Euro Standard)
Rim width range: 5.5"-7.5"
Overall diameter: 631 mm
Diameter difference: Nil
Revolutions per km: 519.6
Indicated Speed: 100 km/h

215/40R18
Rim width range: 7.0"-8.5"
Overall diameter: 629 mm
Diameter difference: -0.41%
Revolutions per km: 521.7
Relative indicated Speed: 100.4 km/h

225/40R18
Rim width range: 7.5"-9.0"
Overall diameter: 637 mm
Diameter difference: +0.84%
Revolutions per km: 515.3
Relative indicated Speed: 99.1km/h

And just to compare, the stock Euro Luxury 17" size tyre:

225/45R17
Rim width range: 7.0"-8.5"
Overall diameter: 634 mm
Diameter difference: +0.41%
Revolutions per km: 517.5
Relative indicated Speed: 99.6km/h

SPQR - Intersting... thanks

Dru...235/40/18 is the go.And by the way saw your car parked in west end.

i was there last friday nite, parked behind the audi R8

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Originally Posted by albii

Dru...235/40/18 is the go.And by the way saw your car parked in west end.

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235/40R18
Rim width range: 8.0"-9.5"
Overall diameter: 645 mm
Diameter difference: +2.137%
Revolutions per km: 508.8
Relative indicated Speed: 102.1km/h

205/55R16 (Stock on Euro Standard)
Rim width range: 5.5"-7.5"
Overall diameter: 631 mm
Diameter difference: Nil
Revolutions per km: 519.6
Indicated Speed: 100 km/h

225/45R17 (Stock Euro Luxury 17" size tyre)
Rim width range: 7.0"-8.5"
Overall diameter: 634 mm
Diameter difference: +0.41%
Revolutions per km: 517.5
Relative indicated Speed: 99.6km/h