Ditchdigger
Ditchdigger UltraDork
9/5/14 9:03 p.m.

Looking for bargains and my tire guy mentioned he could make me a screaming deal on some very low mileage goodyear runflats. He always has a ton around since folks dislike the way they ride and upgrade quickly.

I guess they came off a 2012 BMW and he has been sitting on them for a year and a half.

This is my cruiser, daily driver falcon we are talking about here. How much would I hate the ride compared to any other 205/50?

Basil Exposition
Basil Exposition Dork
9/5/14 9:11 p.m.

In reply to Ditchdigger:

Harsh. And if you ruin one you'll want to replace all four before you pay for the cost of one replacement.

Karacticus
Karacticus GRM+ Memberand Reader
9/5/14 9:22 p.m.

The OEM Continental runflats in 205/55-16 series tires on my wife's 2008 328xi actually rode pretty well. The main drwaback is that they were $ to replace. Apparently the ride gets much worse at higher aspect rations and wheel diameters.

The OEM Bridgestone runflats on my 2007 Z4 (225/45-17)rode like something from the Flintstones, wore out quickly and were pretty damn noisy. Tramlined pretty badly as well, but I've since figured out that's mostly a result of not getting the toe exactly right.

If your Falcon's relatively softly sprung and it's really a screaming deal, I don't think you have much to lose. If you're running vintage, relatively easy to bend steel wheels, it might not hurt to ask your tire guy if he's sure he can get the stiff sidewalls on and off without damaging them though.

mndsm
mndsm MegaDork
9/5/14 9:25 p.m.

I hated the ones on my Cooper S. So much so that I took the wheels off the car and left it on jackstands when it was time to replace the tires because no one would replace them with non run flats due to defeating a factory safety feature.

yamaha
yamaha UltimaDork
9/5/14 9:30 p.m.

I wouldn't unless they were free......Id rather have AAA than run flats.

Ditchdigger
Ditchdigger UltraDork
9/5/14 9:51 p.m.
Karacticus wrote: If your Falcon's relatively softly sprung and it's really a screaming deal, I don't think you have much to lose.

Nope. It is stiff, lowered 4+ inches and I am looking for 205/50-17 tires

Jeff
Jeff SuperDork
9/5/14 9:59 p.m.

There is a reason they are cheap and he still can't sell them. Loud, harsh ride, just terrible.

neon4891
neon4891 UltimaDork
9/5/14 10:00 p.m.

Aside from "every one hates them", I once read on TR that they should only be used with a TPMS system because you wont notice if it goes flat. Or something like that.

Opti
Opti Reader
9/5/14 10:21 p.m.

Just about to mention this. If it goes flat you wont notice,that why all runflat equipped cars have tpms.

I would never run them. I see no benefit. they can come apart just like any tire. Using them ruins them. They are more expensive to replace, they are heavier and they ride worse than a normal tire.

Ditchdigger
Ditchdigger UltraDork
9/5/14 10:36 p.m.

OK OK. I have never heard a kind word about them and this is just more fuel for the fire.

Discarded

oldopelguy
oldopelguy SuperDork
9/5/14 10:51 p.m.

If they are really cheap I think it would be interesting to try a seat on a trailer, but that's about it.

Mmadness
Mmadness HalfDork
9/6/14 2:56 p.m.

Assuming these are the NCT5s.

Well, they're "grand-touring summer tires" so expect all-season dry and wet traction (bad) with summer tire wear and snow capability (bad).

Knurled
Knurled GRM+ Memberand PowerDork
9/6/14 3:38 p.m.
mndsm wrote: I hated the ones on my Cooper S. So much so that I took the wheels off the car and left it on jackstands when it was time to replace the tires because no one would replace them with non run flats due to defeating a factory safety feature.

Huh?

Run flats are not a safety feature. They're a way for the automaker to get away with not putting a spare tire in the car, for space or weight reasons.

4Msfam
4Msfam Reader
9/6/14 4:15 p.m.

I dunno, I can notice a difference in ride quality on our 128i, and definitely in the autocross I can tell they don't have the ultimate in grip (they chunk badly too), but for the Falcon, I don't think you'd really notice that much difference, even with it being lowered. If really cheap, I'd go for it. Like, how "cheap" is "cheap?"

Our Goodyear runflats are pretty good in the Seattle rain. For a DD, I'd go for it. The stiffer sidewalls might actually make your steering even more precise.

Karacticus
Karacticus GRM+ Memberand Reader
9/6/14 9:22 p.m.

Oh, and after replacing the run flat Blizzaks with new, non-run flat snows today, I'd swear the weight of one old run flat was nearly that of the new tire and wheel

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