Quote:
Originally Posted by LogicalApex
There are two types of thread to stir the pot around these forums. Tire threads and oil threads.
The least reliable tires I had on a car were go flats and the Run Flats on my G30 lasted countless potholes and were replaced due to wear at 40K miles.
But not all run flats are identical just like not all go flats are identical.
BMW isn't phasing them out though because they don't like them. They are phasing them out because of weight. That's a bit of a setback if you ask me though. As they are giving you a "Tire Mobility Kit" AKA Slime instead. So now you have to pull over on a highway with little or no shoulder with traffic zipping by you at 100MPH and hope that your tire damage isn't so bad that the slime can seal it.
A setback IMHO. But tires are as personal as OCI so you'll get 100 different opinions from the 100 of us responding!
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They are just saying it is weight related to save face for themselves and the tire manufacturers as there are other brands that continue to use run flats. If they came out and said we are ditching them because they suck, they are throwing themselves under the bus for using them for the last 15 years and leaving people who bought cars with them in the dark. Those same people need to continue to buy run flats, so again, saying they suck is going to hurt sales from legacy owners.
The failure rate of run flats is higher than go flats. The ride is significantly harsher and they don’t weigh that much more. A run flat tires weighs just 2lbs more than standard. So BMW is trying to save 8lbs? Rubbish. Lay off a few Big Macs and you’ve got that back and more.
Run flats vs non Run Flat debates is not even close to oil debates as the overwhelming majority of owners hate run flats and when they switch it’s like riding on a magic carpet.