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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 12-12-2013, 06:22 PM
piniongear piniongear is offline
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Made Switch to Non Run-Flat Tires

After much unhappiness with the ride quality of my 2011 328i coupe due the the lack of compliance over rough surfaces, I decided to switch to regular tires. I gave thought to opting for a slightly higher profile to improve the ride but in the end opted for the std. 225/45/17'. I chose Pirelli P7's and also purchased a clever Continental flat repair kit which includes a pump which plugs into a lighter socket, pressure meter and can of sealant all contained in a slick plastic box not much bigger than a six pack. The ride and handling have been transformed, I only wish I had done this 28K miles ago. This is the way the car should have handled out of the box. The flat kit gives me the peace of mind I need without having to carry a mini spare and jack. The tires are about half the price and readily available in comparison. If you live in an area lacking pristine road surfaces, I urge you to consider making the switch.
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  #2  
Old 12-12-2013, 06:37 PM
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I also live in NYC (Manhattan). I ditched the RFTs on my 335i when the car was 3 weeks old. It make a huge difference but installing Koni FSD dampers took it to the next lever. I now have the car I thought I bought and that BMW should have produced.
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Old 12-12-2013, 06:42 PM
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AskylitDrive AskylitDrive is offline
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Made Switch to Non Run-Flat Tires

When you guys switch to the non RFT tire, did you guys have any lights or sensors come up on the dash?


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  #4  
Old 12-12-2013, 06:48 PM
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Originally Posted by AskylitDrive View Post
When you guys switch to the non RFT tire, did you guys have any lights or sensors come up on the dash?


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No. The non RFTs work fine with the TPMS sensors.

CA
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  #5  
Old 12-12-2013, 07:47 PM
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Originally Posted by captainaudio View Post
I also live in NYC (Manhattan). I ditched the RFTs on my 335i when the car was 3 weeks old. It make a huge difference but installing Koni FSD dampers took it to the next lever. I now have the car I thought I bought and that BMW should have produced.
Like OP, I am also unhappy with the ride quality of my 335i due the the lack of compliance over rough surfaces. It feels like jumpy/choppy over some rough spots in my commute that I barely noticed with my X5. And I suspect it is due to the suspension. I plan to switch to go flat tires once the run flats wear out, but I am interested in a suspension upgrade.

Captain, do you think Koni FSD dampers would definitely improve/solve my jumpy/choppiness issue? What's the cost including labor that I should expect?

Last edited by 53K; 12-12-2013 at 09:03 PM.
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Old 12-12-2013, 07:55 PM
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When you guys switch to the non RFT tire, did you guys have any lights or sensors come up on the dash?


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Old 12-12-2013, 09:21 PM
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Originally Posted by 53K View Post
Like OP, I am also unhappy with the ride quality of my 335i due the the lack of compliance over rough surfaces. It feels like jumpy/choppy over some rough spots in my commute that I barely noticed with my X5. And I suspect it is due to the suspension. I plan to switch to go flat tires once the run flats wear out, but I am interested in a suspension upgrade.

Captain, do you think Koni FSD dampers would definitely improve/solve my jumpy/choppiness issue? What's the cost including labor that I should expect?
I don't know what the result would be with Koni FSD dampers and RFTs as I switched out the RFTs for go flats before I installed the Konis.

I purchased my 2007 335i with sport suspension in Palm Beach Florida and had no issue with the suspension on the relatively pristine South Florida roads. After a month in Florida I had the car shipped to my home in Manhattan. The car was for all practical purposes undriveable on the war ravaged NYC roads. Driving it was so unpleasant that I was about to get rid of the car in spite of the fact that I would take a huge financial hit. I joined a BMW internet forum and expressed my concern and several posters suggested that I replace the run flats with go flats. I purchased a set of Pirelli P_Zero Nero tires and sold the RFTs. The non RFTs made a significant improvement in ride quality but I still experienced "Pothole Explosions" and bouncing around on rough surfaces.

As soon as they became available for the E93 I had Koni FSDs installed and they have been on the car for two years now. I have not had a Pothole Explosion, bent a rim (I bent four with the stock dampers on the car) or damaged a tire (I had to replace 4 with the stock dampers on the car). In 2012 when I replaced the Pirellis with Continental DWS three of the Pirellis had tears in the sidewalls (they had spent most of their life with the stock dampers on the car).

At this point I have a car that handles better than stock and has significantly better ride quality. I don't remember what I paid for the FSDs but it was around $760. I purchased them from Mod Bargains. As I recall installation was around $600. I think it was well worth the money I spent.
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Last edited by captainaudio; 12-12-2013 at 09:24 PM.
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  #8  
Old 12-12-2013, 10:07 PM
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Quote:
Originally Posted by piniongear View Post
After much unhappiness with the ride quality of my 2011 328i coupe due the the lack of compliance over rough surfaces, I decided to switch to regular tires. I gave thought to opting for a slightly higher profile to improve the ride but in the end opted for the std. 225/45/17'. I chose Pirelli P7's and also purchased a clever Continental flat repair kit which includes a pump which plugs into a lighter socket, pressure meter and can of sealant all contained in a slick plastic box not much bigger than a six pack. The ride and handling have been transformed, I only wish I had done this 28K miles ago. This is the way the car should have handled out of the box. The flat kit gives me the peace of mind I need without having to carry a mini spare and jack. The tires are about half the price and readily available in comparison. If you live in an area lacking pristine road surfaces, I urge you to consider making the switch.
+1 I converted less than 4 months into ownership and have absolutely no regrets. With sports suspension + 18 inch run flats + crap roads my car had the compliance little better than a forklift. Amazing the difference a set of tyres can make to a car.
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  #9  
Old 12-13-2013, 02:52 AM
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Quote:
Originally Posted by piniongear View Post
After much unhappiness with the ride quality of my 2011 328i coupe due the the lack of compliance over rough surfaces, I decided to switch to regular tires. I gave thought to opting for a slightly higher profile to improve the ride but in the end opted for the std. 225/45/17'. I chose Pirelli P7's and also purchased a clever Continental flat repair kit which includes a pump which plugs into a lighter socket, pressure meter and can of sealant all contained in a slick plastic box not much bigger than a six pack. The ride and handling have been transformed, I only wish I had done this 28K miles ago. This is the way the car should have handled out of the box. The flat kit gives me the peace of mind I need without having to carry a mini spare and jack. The tires are about half the price and readily available in comparison. If you live in an area lacking pristine road surfaces, I urge you to consider making the switch.

I too was Born Again. Yes, there are others like you, Brother!

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Last edited by CALWATERBOY; 12-13-2013 at 02:56 AM.
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Old 12-13-2013, 02:53 AM
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When you're ready for much more capability do this


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Last edited by CALWATERBOY; 12-13-2013 at 02:55 AM.
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  #11  
Old 12-13-2013, 02:59 AM
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OP- Good for you. But newer loaners I've been getting, that obviously come with RFTs, have left me more and more impressed with the improved ride quality of these tires. Best of luck and drive safely!
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  #12  
Old 12-13-2013, 04:10 AM
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I'll Be switching My RF tires in about 30k miles... They make the car feel really cumbersome . And they're expensive as hell lol.

Last edited by Greggl52; 12-13-2013 at 04:19 AM.
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  #13  
Old 12-13-2013, 06:01 AM
53K 53K is offline
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Thanks CA for the info. I am definitely going to do this when I switch out the tires to go flat. I currently have RFT version of PilotSport (forgot the actual name, PPS??) which I think is pretty good for RFT, so I think the 'choppy/bounciness' that I hate is more due to the suspension than the tires.
I can just ignore the brake squeal, but something needs to be done with suspension.. I guess we just have to accept that the suspension tuning was compromised during the design stage due to introduction of first gen RFT...
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  #14  
Old 12-13-2013, 06:04 AM
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Originally Posted by CALWATERBOY View Post
.

When you're ready for much more capability do this


.
Awesome post
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Old 12-13-2013, 06:19 AM
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Old 12-13-2013, 08:18 AM
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Quote:
Originally Posted by piniongear View Post
After much unhappiness with the ride quality of my 2011 328i coupe due the the lack of compliance over rough surfaces, I decided to switch to regular tires. I gave thought to opting for a slightly higher profile to improve the ride but in the end opted for the std. 225/45/17'. I chose Pirelli P7's and also purchased a clever Continental flat repair kit which includes a pump which plugs into a lighter socket, pressure meter and can of sealant all contained in a slick plastic box not much bigger than a six pack. The ride and handling have been transformed, I only wish I had done this 28K miles ago. This is the way the car should have handled out of the box. The flat kit gives me the peace of mind I need without having to carry a mini spare and jack. The tires are about half the price and readily available in comparison. If you live in an area lacking pristine road surfaces, I urge you to consider making the switch.
Anyone have any real world experience in using one of these kits to repair a flat?I'm interested to know how well they work.
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  #17  
Old 12-13-2013, 08:36 AM
ajayjay1987 ajayjay1987 is offline
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Originally Posted by sunny5280 View Post
Anyone have any real world experience in using one of these kits to repair a flat?I'm interested to know how well they work.
They work surprisingly well. I frequently use it just to fill up my tires when needed. If you had a complete flat, it would take quite a while to completely inflate. I bought mine for $40 on Amazon.
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Old 12-13-2013, 09:17 AM
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Originally Posted by sunny5280 View Post
Anyone have any real world experience in using one of these kits to repair a flat?I'm interested to know how well they work.
The one time I got stranded by a flat there was a tear in the tire and the sealant leaked out. I had to call a tow truck.

I use the compressor regularly to bring the tires up to the proper pressure. It works fine.

CA
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Old 12-13-2013, 09:19 AM
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Old 12-13-2013, 09:21 AM
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I also ditched my runflat tires a couple of months after I bought the car. It made a huge difference in the way the car handles.
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Old 12-13-2013, 11:24 AM
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+1 CA

I switched to my go-flat winters last week and they feel solid yet squirmy (probably due to mostly to tread depth). But the ride quality has been night & day.

Though I really like the planted feeling of the RFT that came stock. Yes, I did feel slightly "jarred" on the drive to LGA this summer, but I rarely hit the city roads. So I'll make a decision when they wear out.
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  #22  
Old 12-13-2013, 11:48 AM
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C'mon guys, don't be pricks. BMW drivers already get bad rap without this. You know, somebody HAS to pay for development of a beta version of the product so that less fortunate huddled masses of tomorrow can have safer tire to drive on. You should feel proud to pay through the nose for a sh*itty and inferior product - because this will allow debugging and reaching economies of scale so that this superior safe tire can be available to less fortunate ones at a reasonable price in the future.

Don't be pricks, stay on RFT. Let's show the world we BMW drivers have soul.



Yes, that was heavy sarcasm. I'm on my second set of Michelin Pilot Super Sport tires and BMW would need to pay me (not just provide RFT free of charge) a very large amount of money to switch back to RFT.
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Old 12-13-2013, 12:08 PM
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Quote:
Originally Posted by ajayjay1987 View Post
They work surprisingly well. I frequently use it just to fill up my tires when needed. If you had a complete flat, it would take quite a while to completely inflate. I bought mine for $40 on Amazon.
I'm interested in how well the kit "patches" the tire as opposed to how well the pump works. The pump is effectively useless if the tire doesn't hold air after patching.
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Old 12-13-2013, 01:18 PM
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Originally Posted by 53K View Post
Like OP, I am also unhappy with the ride quality of my 335i due the the lack of compliance over rough surfaces. It feels like jumpy/choppy over some rough spots in my commute that I barely noticed with my X5. And I suspect it is due to the suspension. I plan to switch to go flat tires once the run flats wear out, but I am interested in a suspension upgrade.

Captain, do you think Koni FSD dampers would definitely improve/solve my jumpy/choppiness issue? What's the cost including labor that I should expect?
Although I'm still running RFTs, I did install Koni FSDs this spring on my 2011 335i xDrive Coupe. I waited until the FSDs went on sale (Koni typically has a sale in the spring) and then had them installed by an independent BMW shop. The total was around $1,500: $750 for the FSDs, $750 for the labor.

For me, they're an improvement, but it's not night and day. The punch to the kidney when you go over a pothole has gone away. You still get quite a thump, but the impact is lessened. I'm glad I did it, for the price. If it were $3,000, I'd hesitate, but for $1,500 I feel I got value for the money. I'm still mulling over whether to move to non-RFTs when my current tires wear out.
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Old 12-13-2013, 01:29 PM
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