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      10-21-2020, 09:54 PM   #195
br2wdc
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Drives: 2011 BMW M3 E90 LMB
Join Date: Mar 2020
Location: Northern VA/Washington DC

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Interesting, I had not considered the possibility my wife would change the tire, because I am 100% certain that she would call me so I could have the honor

I also shared your concerns about a spacer/centering ring, but decided to go with the steel wheel after seeing this video showing how easy the centering ring was to put on:

https://www.youtube.com/watch?v=qZfSykreemw

Quote:
Originally Posted by Jonnyz2 View Post
A lighter weight wheel would be an advantage for my wife if she needs to change the tire.

Anyone have an opinion on the spacer used for the "modern spare" solution?

As I think about what's easy, or not, for my wife I'm not that keen on her needing to use a spacer. That thought also applies to the centering ring needed with the steel wheel.

Another thought occurred to me before on this topic...How important is the wheel diameter match for the rear differential? A 135/70 R18 is 25.4" and the rear tires on my car are 265/35 R 19 which is 26.3". That's nearly an inch which seems significant. If the car needed to be driven 100-200 miles could that cause damage?

There are 145/70R18 tires available which are 26". While more expensive, is the closer size match important?
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2011 E90 M3 | Le Mans Blue | DCT | Slicktop
“The end is inevitable Maverick, your kind is headed for extinction” … “maybe so sir, but not today” – Tom Cruise in Top Gun: Maverick
Previous: 2006 E90 330i | 6MT -- 2001 E39 540i | 6MT -- 1997 E36 M3 | Techno Violet | 5MT
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