I don't really recall us having a discussion on this topic before, so here goes.
Has anyone found (either through experience, or through a guide somewhere) the limits to stretching a tyre?
I'm sure that 175-50 fits over a 7" wide wheel, which is actually pretty impressive, but are there limits to this? Are there cars out there that run even more stretched tyres?
As an example; would a 165-50 tyre safely fit on a 7" wide wheel?
Random 'Stretch on a Polo' pic:
Got Stretch?
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i was going to tell you what 165mm in inches but i cant find my post with the conversion program in it (im sure i was in diy but i think josh has being tiding )
if you work out what the mm is in inches and then id say not to have a tyre much narrower than 1" less (max1.5") than the rim
there was a pic on the vortex in the mk4 golf forum of mad srteach where it was s severe that the bead wasnt touching the rim and i class that as dangerous.
if you work out what the mm is in inches and then id say not to have a tyre much narrower than 1" less (max1.5") than the rim
there was a pic on the vortex in the mk4 golf forum of mad srteach where it was s severe that the bead wasnt touching the rim and i class that as dangerous.
pics of the mk1 with these on were posted on cgti forum
http://www.kult-heart.de/Umb_02_Sons_B1b3_gr.htm
http://www.kult-heart.de/Umb_02_Sons_B1b3_gr.htm
Found some info. I took the 185-55 as a reference.
Spec | Sidewall | Radius | Diameter | Circumference | Revs/km | Difference
185/55-14 102mm 280mm 559mm 1756mm 569 0.0%
195/45-15 88mm 278mm 556mm 1748mm 572 -0.5%
185/45-15 83mm 274mm 548mm 1720mm 581 -2.1%
165/50-15 82mm 273mm 546mm 1715mm 583 -2.3%
165/45-15 74mm 265mm 530mm 1663mm 601 -5.3%
So the 165-50 will be fine. More or less.
Then I remembered this car:
Our Belgian friend Kristof here is running 175-50-13's on a 9 inch wide wheel. Nine. That's insane.
So that's all there is to it - unless someone can prove it's unsafe, I'm convinced the 165-50 will stretch over a measly 7 inch wide wheel. Wonder how it would look.
Spec | Sidewall | Radius | Diameter | Circumference | Revs/km | Difference
185/55-14 102mm 280mm 559mm 1756mm 569 0.0%
195/45-15 88mm 278mm 556mm 1748mm 572 -0.5%
185/45-15 83mm 274mm 548mm 1720mm 581 -2.1%
165/50-15 82mm 273mm 546mm 1715mm 583 -2.3%
165/45-15 74mm 265mm 530mm 1663mm 601 -5.3%
So the 165-50 will be fine. More or less.
Then I remembered this car:
Our Belgian friend Kristof here is running 175-50-13's on a 9 inch wide wheel. Nine. That's insane.
So that's all there is to it - unless someone can prove it's unsafe, I'm convinced the 165-50 will stretch over a measly 7 inch wide wheel. Wonder how it would look.