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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > To RFT or not to RFT



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      09-22-2009, 08:15 AM   #23
doughboy
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Thats not what direct line says in the schedule or the small print? You need to watch what these halfwit call centre people say.

I was with direct line and they never asked me about 'cost option accesories' (what you are saying in reality). Neither online nor on the phone.

They just asked make & model and value and whether it was 'modified' or not. There's no way leather seats is a 'modification' IMO.

Try event-tyres web-tyre-chooser http://www.event-tyres.co.uk/ to see whats in your size - it appears only bridgestone i'm afraid.
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      09-22-2009, 08:16 AM   #24
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Quote:
Originally Posted by DeeMac View Post
Has anyone come across a run flat for 225/50 R16 other than bridgestone?
Look at www.mytyres.co.uk.
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      09-22-2009, 09:20 AM   #25
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went out in a mates 59 plate 135i last night, comes standard with Dunlop RFT's. blimey the difference is amazing to my bridgestones or michelins. you wouldnt know they were RFT's..

still a simple cost thing for me, non rft's on the next change for me.
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      09-22-2009, 10:58 AM   #26
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RFTs seem to cost 40 more per tyre than "normal" tyres.

Has anyone switched to non-RFTs and had a puncture? Does tyreweld actually work? Were you able to have tyre repaired? What happens if you have a blowout and tyre too damaged for tyreweld? RAC?

Finally, has anyone run Fulda tyres on 18" rims?
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      09-22-2009, 03:05 PM   #27
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Hi DeeMac,

I have used tyre weld once before as an emergency get me home when I was out on a sunday morning ride on the bike.

No problems at all with it, just followed the instructions on the can and rode very steady.

With regards to getting the tyre repaired after. Garages hate the stuff as they have to get it all off the rim and tyre before they can fix it.

I didn't get mine repaired, wasn't worth the risk!

Even if a runflat gets shredded it's a RAC job! Some people on here have had the side wall fall a part on their runflats.

I will be changing to non rft's soon

Hope this helps.
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      09-22-2009, 04:06 PM   #28
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Quote:
Originally Posted by JLR1969 View Post
Once my RFTs are illegal then I am switching. Going to try Falken 452s, 90% motorway journeys so not overly concerned with ultimate handling.
I replaced my rear Michelin PS2 RFT's with Falken 452s last week and I've no complaints so far. They are slightly easier to spin but not by much and they are much smoother. I was disappointed at how long the Michelins lasted compared to the OEM Bridgestone RFT's and they were noisier. I wasn't going to buy them again.
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      09-22-2009, 04:07 PM   #29
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Is it possible to put a standard tyre on a runflat rim?

I have heard differing advice.
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      09-22-2009, 04:08 PM   #30
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Quote:
Originally Posted by DeeMac View Post
Is it possible to put a standard tyre on a runflat rim?

I have heard differing advice.
Yes, but not the other way round.
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      09-23-2009, 02:21 AM   #31
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Yes no problem with putting standard tyres on runflat rims but you must do all 4 at once or handling will become more than exciting !!
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      09-23-2009, 02:56 AM   #32
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Quote:
Originally Posted by davyk31 View Post
Yes no problem with putting standard tyres on runflat rims but you must do all 4 at once or handling will become more than exciting !!
I still have the RFT's on the front as have a few people on here and to be honest I haven't noticed any real difference. I was very careful at first just in case.
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      09-23-2009, 04:47 AM   #33
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Quote:
Originally Posted by Skid View Post
Even if a runflat gets shredded it's a RAC job! Some people on here have had the side wall fall a part on their runflats
I'm one of them. My 335i, on 19s, chewed up the inside wall of the RFT within a couple of miles. I was stranded and had to call for a wagon. Then, due to limited stock, was taken 4 hrs out of my way home to grab one of the last 2 remaining tyres in the country (no tyres at all near home). My 4 hr journey took 12 hrs.

If you carry a portable compressor around too you may be able to carry on topping-up the tyre as opposed to using the gunk. I've got one of these in the boot for emergencies (gunk & compressor)...

http://cgi.ebay.co.uk/SLIME-SMART-SP...d=p3286.c0.m14
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      09-23-2009, 08:10 AM   #34
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Quote:
Originally Posted by doughboy View Post
Common concerns foxy,

-Can it affect your warranty?
No absolutely not, no bearing whatsoever. The manual only recommends funflats it does not say they must be used. Run flats are a cost option on ES cars anyway.

-Would it affect future trade in if it was on non-RFT?
Most dealers won't even notice, but if they do remind them that it is BMWs own internal policy to RECOMMEND, supply and fit non RFT tyres to customers who find the ride too harsh.

-I assume tyre pressures would stay the same?
No, you'll need to increase non RFT pressure in general. But start at the rated pressure, then go up.

-As the car is designed for RFT could it affect the handling detrimentally?
Thats marketing BS, what they mean is the car had been ruined in order to be bearable with RFTs. The handling will be much improved, but it may highlight the softer damping used to try and hide the RFT harshness. Higher pressures helps to give some of the stability back to the non RFT. But less tyre weight can only improve things.

-Would you expect the same sort of wear rate (I have at least half tread after 24,000 miles)
Thats REALLY good, my RFT (PS2 with best wear) lasted 24,000 to bald so you are doing well. Wear of a good brand tyre rft/non rft should be similar.

-Would non-RFT's need to be extra load (XL) to compensate for the stiff sidewall of the RFT.
Not especially, but many non rft in our sizes are XL anyway, for example all conti sport 3's are XL in our sizes. Again XL's require higher pressures also.

Also, I gather that from 2010 BMW are making RFTs an option on all models, so after the M cars showed they weren't compatible with 'performance' handling, now they seen to admit they're not compatible with anything else either....
Thanks you make some valid points there mate which has swayed me back towards non-RFT especially when a full set of Falkens can be had for less than 400!

I suppose the only argument for run-flats is the mobility. However. (touch wood) I have never had a blow out and even if you do by the sounds of things the tyre doesn't appear to always last that long.

Many punctures are a nail or a screw which leads to a slow failure and by keep topping it up at least with a non-RFT a repair can be done if poss saving a small fortune!
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      09-23-2009, 02:33 PM   #35
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I'm about to need to make this choice, too. One of my rear Bridgestone RFTs is just below 3mm on the inside edge, and only about 3.5mm on the centre and outside, so I think I'm going to need to switch it soon. The other rear still has about 4-5mm left, but I'd switch them as an axle set anyway so it's largely irrelevant. The options I'm considering are:

1. Two new Bridgestone RFTs to rear - 400 plus fitting
2. New Michelin PS2 RFT all round - 875 plus fitting
3. New Michelin PS2 all round - 620 plus fitting
4. New Goodyear Eagle F1 Asymmetric all round - 500 plus fitting

I'm disinclined to go with 1, as I'm not happy with the ride quality of my existing Bridgestones. 2 is insanely expensive and I'm not convinced there's a huge benefit. So, that leaves 3 and 4. Reviews and opinions online seem to suggest the Goodyears are at least as good as the PS2s, and 100 cheaper, so I'm leaning towards that at the moment. Anyone have any opinions?

Oh, car's an E92 335i on 18" 189s (18"x8 front, 18"x8.5 rear). I'm probably sticking with stock sizes, so 225/40R18 front and 255/35R18 rear, unless there's a reason I shouldn't?
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      09-23-2009, 02:41 PM   #36
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Quote:
Originally Posted by seanblee View Post
I'm about to need to make this choice, too. One of my rear Bridgestone RFTs is just below 3mm on the inside edge, and only about 3.5mm on the centre and outside, so I think I'm going to need to switch it soon. The other rear still has about 4-5mm left, but I'd switch them as an axle set anyway so it's largely irrelevant. The options I'm considering are:

1. Two new Bridgestone RFTs to rear - 400 plus fitting
2. New Michelin PS2 RFT all round - 875 plus fitting
3. New Michelin PS2 all round - 620 plus fitting
4. New Goodyear Eagle F1 Asymmetric all round - 500 plus fitting

I'm disinclined to go with 1, as I'm not happy with the ride quality of my existing Bridgestones. 2 is insanely expensive and I'm not convinced there's a huge benefit. So, that leaves 3 and 4. Reviews and opinions online seem to suggest the Goodyears are at least as good as the PS2s, and 100 cheaper, so I'm leaning towards that at the moment. Anyone have any opinions?

Oh, car's an E92 335i on 18" 189s (18"x8 front, 18"x8.5 rear). I'm probably sticking with stock sizes, so 225/40R18 front and 255/35R18 rear, unless there's a reason I shouldn't?

I've got Goodyear F1 Asymmetrics on my 189 Style alloys and can't fault them, never tried the PS2s but they have proved to be the top choice for most. Either Michelin PS2s, Continental Contisport 3s or Goodyear F1 Asymmetrics should do you fine.
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      09-23-2009, 03:16 PM   #37
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The PS2's and Conti sport 3's are designed especially for high powered rear wheel drive cars.

The eagles are more generic and good reviews are always on FWD or haldex 4wd (R32, S3 etc) which is really FWD anyway.

You can get PS2 or Conti 3 sets on 18" for 600 fitted. Try www.event-tyres.co.uk who give 5% off for 4 tyres, more if you phone and mither.
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      09-23-2009, 04:16 PM   #38
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Sean - I have had all those tyres on various cars albeit non RFT - the Conti SportContact 3s are the ones I like best. And they last ages. And are outstanding in the wet.
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      09-23-2009, 04:44 PM   #39
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I'm yer man for run flats. Last for ages.

And can we really 'feel' the difference between different brands of tyres? Or is it the same type of 'feel' that convinces you your car goes faster when its cleaner, or with premium fuel. Most of the the trye swapping is done from worn tyres to new tyres, so most swaps are going to feel favourable thus convincing you you made the right decision.

Just my 2p
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      09-23-2009, 07:03 PM   #40
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hi,

I had 4 nails over the last 2 weeks in each rear wheel (!!) and both flagged up on the motorway! I pulled over and topped up with air and drove on.. this was non-RFTs Goodyear F1 Assym.

Had no issues, but the tyres did obviously wear more as they lost air again and i did this for 5 days using a compressor!

Simply as I had a new set of wheels coming to replace the buckled ones, and these had RFT PS2.. which are hard, i don't like them, noise is more too, skips around too much now.
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      10-01-2009, 12:14 PM   #41
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Thanks to DavyK for the 18" rims.
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      10-01-2009, 02:09 PM   #42
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Car looks good Damien, didn't take you long to get them on the car !!
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