18" rim, tires question

[UPtrader]

I have some black ice alloy 18x7.5 rims I'm going to be putting on my GP soon. I found some cheap 225/50r18 tires for sale. What are these going to be like? I know they are going to be smaller than stock right? And the speedometer is going to be off, but by how much?

[Fivefingerdeathpunch]

They will read about 1 mph faster.

Will they work, yes but they might look a little off because the section width is almost 1in shorter compared to the correct 245/45/18 size that is normally ran.

Buy them and run em down to nothing then get yourself some new rubber.