Sponsored by The Tire Rack

[CMT206]

My run flats are pretty much brand new so I want to run them into the ground if possible.

Current run flats: 215/40R18 front and 245/35R18 rear.

New wheels: 18x8.5 et45 front and 18x9.5 et45 rear.

I know the general consensus on here is to ditch run flats, but that is a little beyond my budget currently.

Appreciate the feedback

[MightyMouseTech]

Originally Posted by CMT206

My run flats are pretty much brand new so I want to run them into the ground if possible.

Current run flats: 215/40R18 front and 245/35R18 rear.

New wheels: 18x8.5 et45 front and 18x9.5 et45 rear.

I know the general consensus on here is to ditch run flats, but that is a little beyond my budget currently.

Appreciate the feedback

Best way to know for sure is to go onto Tirerack, and check the approved rim widths for the exact tires you have.

Doing anything other than that is pure conjecture.

[NorthernDancer]

Yes, probably will fit however RFT sidewalls are very stiff so don't be surprised if your new wheels are scratched a bit when they are mounted. You should have kept your money, kept the RFTs on the wheels you had and when you had enough money, put conventional tires on the new rims. Just recently had woren out RFTs removed from OE rims and the technician (all they do is tires) had difficulty removing the old tires (RFT's).
And, BTW when buying aftermarket wheels, it is HIGHLY recommended to buy 5 wheels.

[CMT206]

Originally Posted by MightyMouseTech

Best way to know for sure is to go onto Tirerack, and check the approved rim widths for the exact tires you have.

Doing anything other than that is pure conjecture.

Just selected a random pari of tires and didn't see that approved rims link?

[MightyMouseTech]

Originally Posted by CMT206

Just selected a random pari of tires and didn't see that approved rims link?

Select the tires you have then click on specs. It will show the approved rim widths the tire can safely be installed on.

[VMRWheels]

The recommended rim width range for the 215/40/18 is 7-8.5" while the range for the 245/35/18 8-9.5". Hope this helps!

[CMT206]

Originally Posted by VMRWheels

The recommended rim width range for the 215/40/18 is 7-8.5" while the range for the 245/35/18 8-9.5". Hope this helps!

being that the RFT's are at the top of that range, will they stretch at all when placed on the wheel?

[VMRWheels]

Those specs may appear a bit "stretched" on the wheels, although the term "stretched" is a bit subjective. But again, they would still be within the safe range.

[brytom]

Originally Posted by NorthernDancer

Yes, probably will fit however RFT sidewalls are very stiff so don't be surprised if your new wheels are scratched a bit when they are mounted. You should have kept your money, kept the RFTs on the wheels you had and when you had enough money, put conventional tires on the new rims. Just recently had woren out RFTs removed from OE rims and the technician (all they do is tires) had difficulty removing the old tires (RFT's).
And, BTW when buying aftermarket wheels, it is HIGHLY recommended to buy 5 wheels.

Run flat tires will never scratch a wheel. It's rubber. The machine could scratch a wheel.