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Technical Topics Wheels and Tires Steering with Michelin A/S 3+

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      11-20-2019, 10:58 PM   #1
Gman1
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Steering with Michelin A/S 3+

Hello all, I drive a 2020 M340i xdrive. The car is beautiful in so many ways and is a definite improvement over my old 435i in every aspect. The only thing that bothered me was the tires that they came with as standard. They came with pirelli p7 cinturato runflats and they felt like the car was riding on wood. They were surprisingly comfortable, but had no grip, and you could tell that by going on a semi-spirited drive. I did my research on good all season non runflats that are performance oriented and found that most people seemed to be impressed by the Michelin A/S 3+ tires. I ordered a set and had them installed yesterday.

I found that they impacted the steering in a really significant way. The steering is no longer as direct as it was with the runflats and its not nearly as heavy in sport mode. The heaviness doesnt bother me too much, as its pretty artificial, but I am bothered that it isnt as direct as it once was. The tires themselves are good, I definitely notice the extra grip, but I was surprised how they affected the steering. Has anyone else had this experience? Changing the stock run flats with non runflats and finding that the steering is now not as precise? I assume it has to do with the softer side walls.
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      11-20-2019, 11:04 PM   #2
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I had the same experience with A/S 3+ tires on my F30. I think you do lose some of the steering feel because of softer sidewalls on the non RFTs.
I wonder how is the feel on cars that come with non RFTs performance tires from the factory. Is the steering tuned differently in some way for non RFTs on these cars?
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      11-20-2019, 11:05 PM   #3
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Uh oh, I will find out after this weekend but I am getting Conti Extreme Contact DSW’s installed. I figured it wouldn’t handle as well as my run flat summer tires I have on there now but was hoping it wouldn’t be too bad and would be more comfortable.
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      11-20-2019, 11:06 PM   #4
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Quote:
Originally Posted by Patgilm View Post
Uh oh, I will find out after this weekend but I am getting Conti Extreme Contact DSW’s installed. I figured it wouldn’t handle as well as my run flat summer tires I have on there now but was hoping it wouldn’t be too bad and would be more comfortable.
Conti DSWs reportedly have even more softer sidewalls than the A/S 3s.
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      11-20-2019, 11:42 PM   #5
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Quote:
Originally Posted by RedKloud View Post
Conti DSWs reportedly have even more softer sidewalls than the A/S 3s.
I know, I considered getting the A/S3s for that very reason but I really liked how my DSWs handled in bad weather in the past and I didn’t want to give that up based on my prior experience with the tire.
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      11-21-2019, 09:57 AM   #6
NeroCCC
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I have P0(20'') on my summer set, I then switched my winter set recently. I am running this A/S 3+ as my winter tire(down to 19''). So far, I feel it is pretty identical to my P0. Just bit softer and lighter steering wheel feel.
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      11-21-2019, 11:57 AM   #7
Prissy
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have you guys tried this one?

https://www.tirerack.com/tires/tires...!&gclsrc=aw.ds
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      11-21-2019, 01:03 PM   #8
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Quote:
Originally Posted by RedKloud View Post
I had the same experience with A/S 3+ tires on my F30. I think you do lose some of the steering feel because of softer sidewalls on the non RFTs.
I wonder how is the feel on cars that come with non RFTs performance tires from the factory. Is the steering tuned differently in some way for non RFTs on these cars?
Run flats often have an initial better turn in because of the stiffer sidewall. To compensate add another 1-2 psi. This should mitigate the issue.
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      11-21-2019, 06:52 PM   #9
Gman1
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Quote:
Originally Posted by Jbrock22 View Post
Run flats often have an initial better turn in because of the stiffer sidewall. To compensate add another 1-2 psi. This should mitigate the issue.
Okay, so you recommend to add a bit of pressure to regain the steering precision?
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      11-21-2019, 07:49 PM   #10
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Quote:
Originally Posted by Gman1 View Post
Quote:
Originally Posted by Jbrock22 View Post
Run flats often have an initial better turn in because of the stiffer sidewall. To compensate add another 1-2 psi. This should mitigate the issue.
Okay, so you recommend to add a bit of pressure to regain the steering precision?
Yes that's what I did on my 2016 340i. I switched from Bridgestone S001 RFT to the Pilot Sport AS3+.
After a few miles you will get used to the different feel, you will never miss the RFT.
Current car M340ix, my summers are PPS 4s go flats. Winters are Pirelli Sottozero 3 go flat. I'm running 39PSI all around. That's what the manual recommends.
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      11-21-2019, 08:28 PM   #11
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Quote:
Originally Posted by Jbrock22 View Post
Yes that's what I did on my 2016 340i. I switched from Bridgestone S001 RFT to the Pilot Sport AS3+.
After a few miles you will get used to the different feel, you will never miss the RFT.
Current car M340ix, my summers are PPS 4s go flats. Winters are Pirelli Sottozero 3 go flat. I'm running 39PSI all around. That's what the manual recommends.
39 PSI all around even for staggered setup?
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      11-21-2019, 09:46 PM   #12
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Quote:
Originally Posted by RedKloud View Post
Quote:
Originally Posted by Jbrock22 View Post
Yes that's what I did on my 2016 340i. I switched from Bridgestone S001 RFT to the Pilot Sport AS3+.
After a few miles you will get used to the different feel, you will never miss the RFT.
Current car M340ix, my summers are PPS 4s go flats. Winters are Pirelli Sottozero 3 go flat. I'm running 39PSI all around. That's what the manual recommends.
39 PSI all around even for staggered setup?
Winter 225/45/18 square, owners manual says 39psi.
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      11-23-2019, 05:05 PM   #13
Patgilm
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Had my Conti’s installed today. Little bit of a difference in steering but it doesn’t bother me as it actually rides better with my new tires so it’s a little bit of a trade off. However, I haven’t had a real chance to drive it hard yet so once I do maybe I will feel different.
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      11-25-2019, 03:02 PM   #14
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I am going to get A/S 3+ installed next week as well. I wonder what would be the ideal pressures for non-RFTs. People with Pilot Super Sports 4 - what pressures are you running?
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      11-27-2019, 08:06 PM   #15
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You may wanna try adjusting tire settings in your vehicle status. Change it from summer to "Winter/All-season". I found that it helps, and it gives you optimal tire PSI suggestions for the temp.
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      12-02-2019, 07:21 PM   #16
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Taking the car in to get A/S 3+s installed tomorrow!
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      12-02-2019, 09:07 PM   #17
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Quote:
Originally Posted by RedKloud View Post
I am going to get A/S 3+ installed next week as well. I wonder what would be the ideal pressures for non-RFTs. People with Pilot Super Sports 4 - what pressures are you running?
If you are referring to Pilot Sport 4s summer tires, 35 PSI in front 38 PSI in the rear. (Staggered configuration). The pressure ratings are on the nameplate when you open the door, remember this is done at cold temps.
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