[mgattmch]

Nearly two years ago I replaced the stock RFT tires (Goodyear Eagle LS2 245/40R-19) with conventional tires (Dunlop Signature HP All Season) on my 2012 550i Xdrive. I could not be happier with the results, handling is fine and the ride is much smoother/quieter. The only (?) downside is I have no spare wheel in the event of a flat. My question is; can I use a standard size wheel (say a 16" rim) as a temporary spare? Will running an odd size wheel for a short distance damage the Xdrive system?

[wcr3d]

No one can tell you how long it will take to break, just that it will.

You can edit your post to zero it out or ask a mod to delete the duplicate.

[Tallest]

- if you keep wheel circumference the same the size of rim itself wont matter
- 16in wont fit over brakes
- 18-19in wheels are OK to fit
- go with OEM offset and OEM spare wheel
- carry it in trunk only if you travel far, I reckon no point to drag it around in town commute...

[BigKutta]

You could have just saved one of the RFTs as a back up

[Tallest]

Originally Posted by BigKutta

You could have just saved one of the RFTs as a back up

his new wheels are 20s, his old are 19s. I guess he sold the wheel set.

[mgattmch]

Originally Posted by Tallest

his new wheels are 20s, his old are 19s. I guess he sold the wheel set.

No, my wheels are still 19" rims, not 20".

[Tallest]

Originally Posted by mgattmch

No, my wheels are still 19" rims, not 20".

my bad! Still, i suggest an extra OEM rim in same size. reuse the RFT or usually if you buy one rim from classifieds you can find one with some kind of rubber on it. You only need a short drive anyway.

about 10 years ago on my E90 I drove with summers and when driving around I took with me a full OEM winter spare wheel. That got old fast. Only took on really long trips after some time as it was such a hassle.

[equ]

I put together a spare by ordering an OEM bmw alloy 17" spare wheel (most likely 36-11-6-788-203) and an appropriate size tire (135/90/17) for $78, literally assembling my own spare. It is a nice piece of kit that I hopefully will never need.

I actually ordered the 18" bmw spare rim as well, but it was wider and heavier. This alloy wheel is lighter and takes less trunk space. This solution may not work for cars with larger brakes that don't fit 17" wheels.

[nedmon]

I just did what equ did.

Found the tire iron after all these years and away we went.

To seat the beads I took the inside out of the valve stem and hit it with max compressor flow using the air blast pointed rubber fitting.

I was ready to use the ghetto trick of putting a little propane in the wheel and lighting it.

I just don't know how anyone is happy to drive around without a spare.