Upgrade tire size

[Fearmecampers]

Hello. I have a 2013 sedan 3.8. I have been always putting 225 55 r17. I've been looking at 235 55 r17. I want to know it it's ok to use the stock rim and whether I should instead get 235 50 r17? I also love the look of wider tires but if I get the 235 55s will it look taller? Because I also like the look of lower tires. Any advise on performance too? Thanks.

 

[NLJ]

Hello. I have a 2013 sedan 3.8. I have been always putting 225 55 r17. I've been looking at 235 55 r17. I want to know it it's ok to use the stock rim and whether I should instead get 235 50 r17? I also love the look of wider tires but if I get the 235 55s will it look taller? Because I also like the look of lower tires. Any advise on performance too? Thanks.

Each size up you go up in width, you need to go one size down in profile.

 

[Fearmecampers]

Each size up you go up in width, you need to go one size down in

Each size up you go up in width, you need to go one size down in profile.

So the 225 55 looks the same as 235 55 just wider? Or are you saying I should do 235 50 so that the tire is wider but looks the same as the 225 55 on the side?

 

[NLJ]

So the 225 55 looks the same as 235 55 just wider? Or are you saying I should do 235 50 so that the tire is wider but looks the same as the 225 55 on the side?

225/55 to 235/50 will look wider and just as tall.

 

[Flarfignewton]

Not true, the 235/50 has about 6mm less sidewall than the 225/55 which makes the overall tire height about half and inch less. 235/55 will be about the same amount taller. Now a 245/50 is within 1mm sidewall height of the stock 225/55. But if you like the smaller sidewall 235/50 would be your choice, but the speedometer will read a little higher than your actual speed you're travelling.

 

[NLJ]

Not true, the 235/50 has about 6mm less sidewall than the 225/55 which makes the overall tire height about half and inch less. 235/55 will be about the same amount taller. Now a 245/50 is within 1mm sidewall height of the stock 225/55. But if you like the smaller sidewall 235/50 would be your choice, but the speedometer will read a little higher than your actual speed you're travelling.

Nothing would be perfect but 50 would be about 6mm shorter and that is not 1/2 inch. 1/2 inch is about 13mm. 55 would increase height by about 5mm.
If for winter, go taller.

 

[Flarfignewton]

Yes the sidewall is 6mm but the overall height would be 12mm because the 6mm sidewall difference is only accounting for the difference on one side of the tire, not the complete diameter. One inch equals 25.4mm so 12mm is just shy of a half inch. So the ride height increases 6mm and the tire is 6mm further into the wheel well.

 

[NLJ]

Yes the sidewall is 6mm but the overall height would be 12mm because the 6mm sidewall difference is only accounting for the difference on one side of the tire, not the complete diameter. One inch equals 25.4mm so 12mm is just shy of a half inch. So the ride height increases 6mm and the tire is 6mm further into the wheel well.

No it is 6.25mm total arch gap loss/height loss.
Will They Fit - Online Wheel and Tyre Fitment Calculator

 

[Flarfignewton]

Yes because if you look at the diameter on that calculator it will show that the diameter is 679.3mm vs 666.8mm. The 6.25mm ride height increase and wheel arch loss are two separate measurements. There's only one contact point on the road with a tire so the radius which is from the center point of the wheel/tire assembly to the contact point of the road is half of the diameter change, 6.25mm. The overall diameter change or the total tire height difference top to bottom is 12.5mm. That calculator backs that up.