Is it OK?

 

The factory 18" wheels have 245/45/18 on the rears...
The front is 225/45/18

I would not suggest putting the 245's on the front, it will throw off your factory stagger setup.....it can be done though.....

 

Mine is a sedan with factory 235/45 18in. all around.

 

Why is a stagger needed?

Certainly changing the setup so that all the tires are the same size can't hurt. Can it?

John

 

are you talking about a sedan or coupe? I run 245 45 18 on stock sport rims now.

 

I am talking about sedan. Anyway, I've already ordered a set of Yoko YK520 245/45 18in. Just ask to make sure. I was going to go with Michelin Pilot Sport but those are damn expensive. The Yoko is about 183 per tire.

 

I just found out the 60k warranty on the YK520s only covers 15-17" tires excluding 45 series. That's pretty underwhelming.

 

yes, 245/45-18 will work fine all round for sedan. in fact it's a popular choice for 235/45-18 replacement - better options in 245 size.

 

i was checking toyo's website few days ago and saw T1R is now available in 235/45/18. may worth a look.