Run-flats recommendations 135i

thl70 · 05-01-2018, 12:45 PM

Hello. I need to get some new tires on my 135I limited Edition. The car has Bridgestone Potenza on it now but I was hopping to find a quieter, less jarring replacement. The dealer has the Pirelli P Zero's and Dunlop SP1 available. Any recommendation as to which can provide a more comfortable ride for city driving with really bad roads? Thank you!

Picanha · 05-01-2018, 01:10 PM

Is there a particular reason you are wanting a run-flat tire specifically?

thl70 · 05-01-2018, 01:21 PM

I do a lot of road tripping and don't want to be stuck without a spare tire. Although all my flats happened in the city but I guess its just the peace of mind. If I were to go with regular tire, what would you recommend?

Picanha · 05-01-2018, 01:53 PM

Quote:

Originally Posted by thl70

I do a lot of road tripping and don't want to be stuck without a spare tire. Although all my flats happened in the city but I guess its just the peace of mind. If I were to go with regular tire, what would you recommend?

I can see how a run-flat would theoretically seem more practical, but with their driving characteristics I would rather take a small "risk" with a traditional tire.

You did mention wanting a more compliant ride, and a good summer tire will definitely ride smoother than a run-flat. I think a lot of people would recommend the go-to Michelin PSS/PS4S. Depending on your budget, there are more value-oriented summer tires that are also well-reviewed. Just depends on your application and budget.

c1pher · 05-01-2018, 02:03 PM

I recommend switching to Michelin PSS or AS/3 and put a can of fix a flat in the trunk. Also add AAA just in case.

thl70 · 05-01-2018, 02:24 PM

Yea, The more I look, the more I should just junk the run flats.

Dthltm · 05-01-2018, 04:06 PM

Quote:

Originally Posted by thl70

Yea, The more I look, the more I should just junk the run flats.

Theres a Michelin run flat out there.

NorthernDancer · 05-01-2018, 04:40 PM

Go the The Tire Rack site; my guess is you're looking for Grand Touring All Season.

Enoe Ulbeht · 05-01-2018, 08:44 PM

the pirelli p7 run flats are quiet so far for me after 1000 miles. more of a touring summer tire than a performance one, which seems to suit your road tripping habits.
I do 25K miles a year mostly highway. I like the peace of mind of run flats. plus it's a myth that they are not repairable.

tock172 · 05-02-2018, 08:01 AM

If you're dead set on running RFTs, consider the Michelin Pilot Sport ZP or some variation of the Bridgestone DriveGuard.

Otherwise, join the cool kids, see the light and ditch the RFTs and their rock-hard side walls. I'm a big fan of Michelin, but there are other excellent choices for less money on the market as well from Continental, Firestone, etc.

m_thompson · 05-03-2018, 06:53 AM

Quote:

Originally Posted by Enoe Ulbeht

the pirelli p7 run flats are quiet so far for me after 1000 miles.

I installed P7s last weekend. They are much quieter than the P-Zeros they replaced.

m_thompson · 05-10-2018, 07:05 AM

Quote:

Originally Posted by m_thompson

I installed P7s last weekend. They are much quieter than the P-Zeros they replaced.

The P7s were squirmy for the first few days, but after a little more than a week they are working well. I think that the rolling resistance is lower because I am getting about 1 MPG better than with the P-Zeros, and about the same MPG that I get with the X-Ice winter tires.

Enoe Ulbeht · 05-10-2018, 09:06 AM

Quote:

Originally Posted by m_thompson

Quote:

Originally Posted by m_thompson

I installed P7s last weekend. They are much quieter than the P-Zeros they replaced.

The P7s were squirmy for the first few days, but after a little more than a week they are working well. I think that the rolling resistance is lower because I am getting about 1 MPG better than with the P-Zeros, and about the same MPG that I get with the X-Ice winter tires.

yes your are right. I think they have the Eco badge on the sidewall.

thl70 · 05-22-2018, 11:28 AM

Ok. I pulled the trigger and replace the rock BMW call tires with the Michelin Pilot Sport. Man, what a huge difference, It's enjoyable to drive in the city again! Why did I ever went on for 5 years with run-flats? I feel like my car probably had some premature structural fatigue due to the rigid nature of the run-flats. As a matter of fact, just last week I had to take my car in for some popping, cracking sounds from the steering. It ended up being a loose bolt on the steering system. The mechanic claims its common with a convertible but I think the hard tires definitely contributed as the car only has 30k miles. I just want to thank everyone for convincing me to replace the run-flats! Now for the next question. What does everyone use for an emergency? I read that slim repair kits can damage the pressure sensor. Anyone out there who had flats before have any inputs as to if that is true? Thank you again!

JimVonBaden · 05-22-2018, 11:55 AM

Quote:

Originally Posted by thl70

Ok. I pulled the trigger and replace the rock BMW call tires with the Michelin Pilot Sport. Man, what a huge difference, It's enjoyable to drive in the city again! Why did I ever went on for 5 years with run-flats? I feel like my car probably had some premature structural fatigue due to the rigid nature of the run-flats. As a matter of fact, just last week I had to take my car in for some popping, cracking sounds from the steering. It ended up being a loose bolt on the steering system. The mechanic claims its common with a convertible but I think the hard tires definitely contributed as the car only has 30k miles. I just want to thank everyone for convincing me to replace the run-flats! Now for the next question. What does everyone use for an emergency? I read that slim repair kits can damage the pressure sensor. Anyone out there who had flats before have any inputs as to if that is true? Thank you again!

Avoid any kind of slime. It is hard on the rims and sensors. Get a small compressor and a plug kit and learn how to use it. Like this (MC but the same): http://jvbproductions.com/Tire_Plugging.html

Ditching the run flats was the best mod yet.

Captain Blood · 05-22-2018, 12:50 PM

Quote:

Originally Posted by JimVonBaden

Avoid any kind of slime. It is hard on the rims and sensors. Get a small compressor and a plug kit and learn how to use it. Like this (MC but the same): http://jvbproductions.com/Tire_Plugging.html

Ditching the run flats was the best mod yet.

I was told to avoid "fix a flat" at all costs.

Cavpilot2k · 05-22-2018, 12:55 PM

Do you switch wheels out for the winter?
I use a 17" square setup (141 style wheels) for my winter tires and often in the summer I will just keep one of my winter wheels in the trunk in case of a flat (I run runflats in the winter, but performance summers the other half of the year).

NorthernDancer · 05-22-2018, 03:43 PM

I didn't see it noted here but my rft's got very noisy when they reached about ½ worn. Getting rid of them was best mod I ever did (well equal to BMW P exhaust). Now, if I have to go long distance I carry 1 of my track tires on rim ready to go. Got a suitable new jack from a junk yard, also carry a ½ inch drive power bar and 17mm deep socket.

05-01-2018, 12:45 PM	#1
thl70 Enlisted Member 7 Rep 38 Posts Drives: 535i GT Join Date: Oct 2012 Location: San Francisco iTrader: (0)	Run-flats recommendations 135i Hello. I need to get some new tires on my 135I limited Edition. The car has Bridgestone Potenza on it now but I was hopping to find a quieter, less jarring replacement. The dealer has the Pirelli P Zero's and Dunlop SP1 available. Any recommendation as to which can provide a more comfortable ride for city driving with really bad roads? Thank you!
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05-01-2018, 01:10 PM	#2
Picanha 30FF 28 Rep 32 Posts Drives: M3 Join Date: Apr 2017 Location: US iTrader: (0)	Is there a particular reason you are wanting a run-flat tire specifically?
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05-01-2018, 01:21 PM	#3
thl70 Enlisted Member 7 Rep 38 Posts Drives: 535i GT Join Date: Oct 2012 Location: San Francisco iTrader: (0)	I do a lot of road tripping and don't want to be stuck without a spare tire. Although all my flats happened in the city but I guess its just the peace of mind. If I were to go with regular tire, what would you recommend?
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05-01-2018, 02:03 PM	#5
c1pher Primo Generalissimo 4669 Rep 4,022 Posts Drives: All of them Join Date: Jun 2009 Location: DC area iTrader: (0) Garage List 2017 Porsche 911 Ca ... [10.00] 2023 BMW M2 [9.00] 2023 Porsche Macan GTS [10.00] 2022 Ford F-250 Tremor [8.50]	I recommend switching to Michelin PSS or AS/3 and put a can of fix a flat in the trunk. Also add AAA just in case.
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05-01-2018, 02:24 PM	#6
thl70 Enlisted Member 7 Rep 38 Posts Drives: 535i GT Join Date: Oct 2012 Location: San Francisco iTrader: (0)	Yea, The more I look, the more I should just junk the run flats.
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05-01-2018, 04:40 PM	#8
NorthernDancer Colonel 848 Rep 2,276 Posts Drives: 08 Sedona 128 & 06 330xiT 6MT Join Date: Apr 2011 Location: Ottawa On Canada iTrader: (3)	Go the The Tire Rack site; my guess is you're looking for Grand Touring All Season.
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05-01-2018, 08:44 PM	#9
Enoe Ulbeht Private First Class 83 Rep 110 Posts Drives: 128i Convertible Join Date: Nov 2016 Location: Michigan iTrader: (0) Garage List 2008 BMW 535xi Touring [0.00] 2011 BMW 128i Conve ... [0.00]	the pirelli p7 run flats are quiet so far for me after 1000 miles. more of a touring summer tire than a performance one, which seems to suit your road tripping habits. I do 25K miles a year mostly highway. I like the peace of mind of run flats. plus it's a myth that they are not repairable.
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05-02-2018, 08:01 AM	#10
tock172 Beachtown Bill Collector 582 Rep 1,062 Posts Drives: 2012 135i Join Date: May 2011 Location: San Diego iTrader: (1) Garage List 2012 BMW 135i [0.00] 1999 Lexus LS400 [0.00] 1985 BMW 325e [0.00]	If you're dead set on running RFTs, consider the Michelin Pilot Sport ZP or some variation of the Bridgestone DriveGuard. Otherwise, join the cool kids, see the light and ditch the RFTs and their rock-hard side walls. I'm a big fan of Michelin, but there are other excellent choices for less money on the market as well from Continental, Firestone, etc. __________________ 2012 BMW 135i Space Grey Metallic M-Sport DCT Dinan S2
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05-22-2018, 11:28 AM	#14
thl70 Enlisted Member 7 Rep 38 Posts Drives: 535i GT Join Date: Oct 2012 Location: San Francisco iTrader: (0)	Ok. I pulled the trigger and replace the rock BMW call tires with the Michelin Pilot Sport. Man, what a huge difference, It's enjoyable to drive in the city again! Why did I ever went on for 5 years with run-flats? I feel like my car probably had some premature structural fatigue due to the rigid nature of the run-flats. As a matter of fact, just last week I had to take my car in for some popping, cracking sounds from the steering. It ended up being a loose bolt on the steering system. The mechanic claims its common with a convertible but I think the hard tires definitely contributed as the car only has 30k miles. I just want to thank everyone for convincing me to replace the run-flats! Now for the next question. What does everyone use for an emergency? I read that slim repair kits can damage the pressure sensor. Anyone out there who had flats before have any inputs as to if that is true? Thank you again!
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05-22-2018, 12:55 PM	#17
Cavpilot2k Chief Warrant Officer 1023 Rep 1,638 Posts Drives: like a damn lunatic Join Date: Feb 2012 Location: Boston iTrader: (0)	Do you switch wheels out for the winter? I use a 17" square setup (141 style wheels) for my winter tires and often in the summer I will just keep one of my winter wheels in the trunk in case of a flat (I run runflats in the winter, but performance summers the other half of the year). __________________ "Prius" is Latin for Eunuch. "Hrothgar": 2012 135i: 6MT M-Sport, BSM/Blk; Nav, Premium, Convenience, HK Dinan Stage 2 +PPK /// BMW PE /// VRSF CP /// K&N /// Koni Sports /// RSFB Inserts /// MPS4S 225/255 /// Other Stuff
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05-22-2018, 03:43 PM	#18
NorthernDancer Colonel 848 Rep 2,276 Posts Drives: 08 Sedona 128 & 06 330xiT 6MT Join Date: Apr 2011 Location: Ottawa On Canada iTrader: (3)	I didn't see it noted here but my rft's got very noisy when they reached about ½ worn. Getting rid of them was best mod I ever did (well equal to BMW P exhaust). Now, if I have to go long distance I carry 1 of my track tires on rim ready to go. Got a suitable new jack from a junk yard, also carry a ½ inch drive power bar and 17mm deep socket.
	Appreciate 0 Quote