[Gabreigns]

Hit a pothole at 65mph and this happened. We were 55 miles from our destination middl of nowhere with a baby in the back seat and outside ambient temperatures were 22 degrees Fahrenheit (negative 5.5 degrees Celsius). After taking this picture we hobbled along at 50 mph to our home.
Interesting thing happened when the car noticed that the front right tire pressure was low.
1. Threw a TPMS warning and recommended speed to drive on Runflats. Recommended pulling over too.
2. Turned off the cruise control automatically
3. Turned on the flashers and rear fog lamps automatically to increase visibility.

I was pretty impressed with the way the car handled it as well as the Bridgestone tires that was able to keep up as a Runflats.
Ordered a new tire on our way and will have it installed as soon as it gets in.

[Polo08816]

Originally Posted by Gabreigns

Hit a pothole at 65mph and this happened. We were 55 miles from our destination middl of nowhere with a baby in the back seat and outside ambient temperatures were 22 degrees Fahrenheit (negative 5.5 degrees Celsius). After taking this picture we hobbled along at 50 mph to our home.
Interesting thing happened when the car noticed that the front right tire pressure was low.
1. Threw a TPMS warning and recommended speed to drive on Runflats. Recommended pulling over too.
2. Turned off the cruise control automatically
3. Turned on the flashers and rear fog lamps automatically to increase visibility.

I was pretty impressed with the way the car handled it as well as the Bridgestone tires that was able to keep up as a Runflats.
Ordered a new tire on our way and will have it installed as soon as it gets in.

I'm not sure what to say...

Runflats were designed with more rigid sidewalls to be able to deal with lower air pressure in the tires in the event of a flat (from a tread puncture).

However, that may go out the window if there's substantial sidewall damage.

[Mbeans]

Glad that your family is okay!
In my experience having a flat with regular non run flats at 75 mph ended up poorly with my car being totalled, broken wrist, hairline skull fracture, hairline broken rib and a dislocated femur. Not to mention the trips to physical therapy.
It was a few years ago, but now i am always on runflats. People hate the ride and so on and so forth but the ride is secondary to a life threatening situation IMO.
Of course I am unique to my situation and not all flats at any speed goes the way it did for me.

[Gabreigns]

Originally Posted by Mbeans

Glad that your family is okay!
In my experience having a flat with regular non run flats at 75 mph ended up poorly with my car being totalled, broken wrist, hairline skull fracture, hairline broken rib and a dislocated femur. Not to mention the trips to physical therapy.
It was a few years ago, but now i am always on runflats. People hate the ride and so on and so forth but the ride is secondary to a life threatening situation IMO.
Of course I am unique to my situation and not all flats at any speed goes the way it did for me.

Woah!! That is messed up. Glad you lived through that!
Thanks for mentioning the safety of the family. They were okay.

[CRJdriver]

I believe it. A nail ran straight through the rain groove of my S001 rears. For about 30 miles of driving over a day, before I saw the sneaky bastard, I swore the TPSM was screwing with me. Until I got the tail loose and it felt like the tire was about to come off the rim...
Even with 0 psi it ran like...normal under normal conditions. Normal freeway speed, 75-85 is even fine. Way better then a donut space saver

[IllLojik]

Glad all are ok. As much hate as they get on the forums, My Bridgestone run flats saved my tail at least twice since I got the car. I would have been stranded and screwed.

[zamboni]

Your car came with rear fog light?

[eluded]

Glad you and the family were OK. So much runflat hate online. They are good tires. I lost an MPSS at speed and nearly crashed in the process but luckily my lightning quick reflexes saved me It is Not fun when one of these low-profile tires Decide to separate from the rim at speed

[Gabreigns]

Originally Posted by zamboni

Your car came with rear fog light?

Yes they did come with the car when I bought it pre owned . It was previously owned by BMW NA.

[primetyme941]

Originally Posted by Polo08816

I'm not sure what to say...

Runflats were designed with more rigid sidewalls to be able to deal with lower air pressure in the tires in the event of a flat (from a tread puncture).

However, that may go out the window if there's substantial sidewall damage.

I'm not impressed. My first set of runflats and this happened to me without hitting a pothole. I was washing my car and noticed the sidewall was bulging similar to this. High speed blowouts scare me, but I can't justify replacing these at $300 a piece.

[Polo08816]

Originally Posted by primetyme941

I'm not impressed. My first set of runflats and this happened to me without hitting a pothole. I was washing my car and noticed the sidewall was bulging similar to this. High speed blowouts scare me, but I can't justify replacing these at $300 a piece.

My OE Bridgestone S001 RFT developed a bubble in the sidewall. Fortunately it was towards the end of their lifespan. They have been replaced by Michelin PSS non-RFT.

[Gabreigns]

Originally Posted by primetyme941

I'm not impressed. My first set of runflats and this happened to me without hitting a pothole. I was washing my car and noticed the sidewall was bulging similar to this. High speed blowouts scare me, but I can't justify replacing these at $300 a piece.

Was it replaced under road hazard warranty because of the bulge? The Bridgestone Driveguard Runflats are about 150 each. About the same as a regular tire no?

[primetyme941]

Originally Posted by Polo08816

My OE Bridgestone S001 RFT developed a bubble in the sidewall. Fortunately it was towards the end of their lifespan. They have been replaced by Michelin PSS non-RFT.

Hmm, it's odd that this happening with the stiffer sidewall.. my Pirellis still had about 10k left. New Bridgestone Comp 2 A/S are on now.

[primetyme941]

Originally Posted by Gabreigns

Was it replaced under road hazard warranty because of the bulge? The Bridgestone Driveguard Runflats are about 150 each. About the same as a regular tire no?

No, not under warranty. My car came with the Pirelli P-Zero runflats which are $300 each. I just sucked it up and replaced them all. I should add that I have the 19" staggered wheels.

[CRJdriver]

Originally Posted by primetyme941

No, not under warranty. My car came with the Pirelli P-Zero runflats which are $300 each. I just sucked it up and replaced them all. I should add that I have the 19" staggered wheels.

P7 RFT and 19" rims? I would live in fear of cracking rims if I were you.
A quick Google search of bmw RFT cracking rims with low profile tires would provide some insight if u haven't heard of it.

I have 18" staggered with the Bridgestone S001. and when combine with 704 suspension, It's by far the stickiest but also STIFFEST ride for the F30 you can get from BMW.

Your P7 has softer sidewalls but yeah I would of and is planing to go to non RFT. Specifically Michelin PSS. But I also live in LA..where the roads are as smooth as a teenagers face..

Another member posted about the Bridgestone DriveGuard. They are are rated as all season touring tires.
The Bridgestone S001 and Pirelli P7 are the only 2 Max Performance tires fitted to the F30's that would enable the 155mph speed limiter otherwise it's 130.

[Gabreigns]

Both my Bridgestone Driveguard run flat front tires were changed with new ones under road hazard warranty. Worked out great!

[carzaddict]

Originally Posted by zamboni

Your car came with rear fog light?

all the cars do, but they're just not active for NA cars. you have to get a new light switch with a rear fog button and do some coding to get them enabled

[fshubert]

They ride rough but had the same experience as the OP and my RFT got me home as well. Mine was in a horrendous rain so driving on the RFT beat getting soaked changing to a spare.

[snj49er]

Originally Posted by carzaddict

all the cars do, but they're just not active for NA cars. you have to get a new light switch with a rear fog button and do some coding to get them enabled

You don't need a new switch, just a small mod and coding. http://f80.bimmerpost.com/forums/sho....php?t=1023817
Scroll down to msg#22 which shows that you don't even have to remove the switch.

[Trevster]

Mine came with 20' and run flats already equipped. 3 of the 4 rims already have chips. Fml

[kreuz]

I had something similar happen to me, too. I looked online as I thought the pothole wasnt even that big, and found people saying RFTs are actually more prone to these kinds of damages than regular tires because of the less flexible sidewall... Does anyone know if that's true?

[Polo08816]

Originally Posted by kreuz

I had something similar happen to me, too. I looked online as I thought the pothole wasnt even that big, and found people saying RFTs are actually more prone to these kinds of damages than regular tires because of the less flexible sidewall... Does anyone know if that's true?

Well, I'm not a tire engineer but it happened to me with my OEM RFTs and this was an 18" tire.

I did not have any issues with my winter tires or my Michelin PSS so far.