02-26-2021, 05:40 AM | #45 |
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You have a pic of it from behind?
I was looking into 235/45/19 for a little more width and height. The 245/40 would be wider but shorter? |
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02-26-2021, 05:51 AM | #46 |
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02-26-2021, 12:48 PM | #48 | |
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245/45's would give you a little more life due to it's larger circumference. Both will work on an 8" wheel Last edited by Bcborn59; 02-26-2021 at 11:45 PM.. Reason: Info added |
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02-26-2021, 01:52 PM | #49 | |
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The tires do look great though. Had Michelin A/S 3+'s installed recently and they're a world of difference from the stock RFT Pirelli's, and a veritable steal as far as cost. I'm sure the DWS's are even more comfortable on the road. Dang chain stores though, all that money plus an alignment and they don't even bother to air up the tires before handing me back the key. |
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02-26-2021, 05:31 PM | #50 | |
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Attached is also a pic I took of a couple of random brand tires showing the difference between the 2 sizes. |
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04-11-2021, 11:32 PM | #51 | ||
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04-20-2021, 06:34 PM | #52 | |
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04-20-2021, 11:53 PM | #53 |
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How many miles?
I'm still running factory continental runflats and am at 9100 miles. Lots of treadlife left. I'm looking into either the Michelin CrossClimate2 or the Nokian WR G4 tires since I'm not going to bother with a dedicated snow setup. guessing I need to take some long vacations that are far away to wear these out. I had the AS3+ on my F33 and they were phenomenal! Didn't test longevity since I traded it in. |
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04-22-2021, 11:15 AM | #54 | |
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04-27-2021, 06:24 PM | #55 | |
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I also want to ask if you had trouble mounting a non-RFT tyre with the OEM 19" wheels since I believe it's prepared for RFT tyres. Thanks!
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04-27-2021, 08:53 PM | #56 | |
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No trouble mounting...the wheel doesn't know the tire is not a RFT. |
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04-28-2021, 11:18 AM | #57 | |
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My understanding was that RFT tires have different 'lips' for mounting. That's why I thought rims need to be special.
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04-28-2021, 11:20 AM | #58 |
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04-28-2021, 01:16 PM | #59 |
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Unfortunately, this is not always correct. There is a user on another forum who for some reason has 2 wheels sets that look exactly the same but have slightly different part numbers. One part number will take normal tyres and Run Flats, but the other will only take Run Flats.
The best option is to check the part numbers with BMW and see what can be fitted.
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04-28-2021, 01:23 PM | #60 | |
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From Tire Rack: Many drivers are uncertain whether they can put non-run-flat tires on wheels that originally came with run-flat tires. The short answer: yes. Run-flat tires and regular tires that are the same numeric size will have the same physical dimensions, and can fit properly on the same wheels. The only difference with run-flat wheels is they usually have an extra hump behind the bead seat. This hump would help keep the run-flat tire in its proper place on the wheel while driving without air pressure. It does not affect the performance or compatibility of the non-run-flat tire. |
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04-28-2021, 01:54 PM | #61 | |
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It is BMW who made the original statement and is NOT made up. |
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04-28-2021, 01:58 PM | #62 |
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04-29-2021, 12:04 PM | #64 |
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Thanks!
And you didn't even need wheel spacers, did you? No rubbing whatsoever with your current 245/40 setup.
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04-29-2021, 12:17 PM | #65 |
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No spacers and no rubbing. Ride is much smoother and handles better. I always ditch RFT's if a vehicle has them. All of my expert tire guys are against RFT's.
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04-29-2021, 12:46 PM | #66 |
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I have 19" Niche Aftermarket wheels with Toyo non-Run flats....I hate run flats. They're expensive up here in Canada and with our pot holes, crevices. cracks, sunken man hole covers and expansion joints on our shitty roads in Quebec, I've heard a lot of bad stories of exploding tires and replacements costing up to $800 per tire! So I used the original wheels that my 2018 came with and use them for winter with proper winter tires that is the law here in Quebec and I bought Toyo Extensa XP 245/40/19 and very happy with the look, performance and low highway noise. I have no spare and instead I have a flat tire bottle/bong that has a stem/hose that screws to the valve stem of the tire and fills it up and seals the hole...up to a point of course except if it's a catastrophic failure of the side wall which has never happened to me. The puncture repair is good enough to make it to the garage in time for a replacement or repair.
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