225X40X18 or 255X35X18

[poko]

it looks like too much of a job after looking at it today.

what do you think on 245X40X18 ?

will the extra height be a problem

[jonnyc]

it looks like too much of a job after looking at it today.

what do you think on 245X40X18 ?

will the extra height be a problem

3 options if you want to stay with stock rotational diameter.. 225/40 255/35 or 285/30

I have ran 235/40 and that's ok, only a few mm but 245/40 would be daft..

[Hedge]

Any use?

335 25/18, diameter diff: -1.96% , speedometer will read faster than actual.
  155 55/18, diameter diff: -1.49% , speedometer will read faster than actual.
  285 30/18, diameter diff: -1.41% , speedometer will read faster than actual.
  245 35/18, diameter diff: -1.33% , speedometer will read faster than actual.
  215 40/18, diameter diff: -1.26% , speedometer will read faster than actual.
  145 60/18, diameter diff: -0.94% , speedometer will read faster than actual.
  175 50/18, diameter diff: -0.78% , speedometer will read faster than actual.
  195 45/18, diameter diff: -0.71% , speedometer will read faster than actual.
  295 30/18, diameter diff: -0.47% , speedometer will read faster than actual.
  255 35/18, diameter diff: -0.24% , speedometer will read faster than actual.
225 40/18
  165 55/18, diameter diff: +0.24% , speedometer will read slower than actual.
  305 30/18, diameter diff: +0.47% , speedometer will read slower than actual.
  205 45/18, diameter diff: +0.71% , speedometer will read slower than actual.
  185 50/18, diameter diff: +0.78% , speedometer will read slower than actual.
  265 35/18, diameter diff: +0.86% , speedometer will read slower than actual.
  155 60/18, diameter diff: +0.94% , speedometer will read slower than actual.
  235 40/18, diameter diff: +1.26% , speedometer will read slower than actual.
  145 65/18, diameter diff: +1.33% , speedometer will read slower than actual.
  315 30/18, diameter diff: +1.41% , speedometer will read slower than actual.
  275 35/18, diameter diff: +1.96% , speedometer will read slower than actual.
  175 55/18, diameter diff: +1.96% , speedometer will read slower than actual.

[poko]

335/25/18 it is 

Thanks for the help
 

I will do the change approx in a month

Ill set up one wheel in 255 and if i cant sort it on the cupra revert to 225 in r888