Tyre fitment on wheel size 18x8.5 +45

[aforasyraf]

I'm getting new wheels fitted to my Mk6 gti soon and currently awaiting shipment. My question is should I fit it with a 225/40 or a 235/40? And will the tyre stretch? Thanks guys.

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[doc_777]

Hey there. The 19x8's on my Alltrack Wolfsburg have 245's fitted and they look right IMO. If you are going to fit an 8.5" rim, I would think that 235 would be your preferred size - nothing narrower.

[FarQ]

235/40R18 wont stretch as 8.5" is the measuring rim width for this size tyre. 235/40R18 can be fitted on 8-9.5" wide rims. So if there is not much cost difference, it will increase your rolling diameter by 7mm. This is quite acceptable and will probably give you a truer indication on your speedo. If you prefer the stretched look, 225/40R18 would be better (rim width range 7.5-9" and measuring rim width 8").

[aforasyraf]

235/40R18 wont stretch as 8.5" is the measuring rim width for this size tyre. 235/40R18 can be fitted on 8-9.5" wide rims. So if there is not much cost difference, it will increase your rolling diameter by 7mm. This is quite acceptable and will probably give you a truer indication on your speedo. If you prefer the stretched look, 225/40R18 would be better (rim width range 7.5-9" and measuring rim width 8").

Thanks for the tip mate!

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