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2010 2011 BMW 5 Series Forum F10 First Impressions - New Non Runflat Tires |
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11-05-2012, 10:45 PM | #1 |
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First Impressions - New Non Runflat Tires
Disposed of the Michelin Primacy OEM RunFlats with a major upgrade to Bridgestone Potenza S-04's Non Runflats.
what a difference.. -I can feel the road- the dumbed down isolation sensation is gone. Feels a lot more like my '08 E60 550i. -Great tip in, car is more responsive to subtle steering adjustments- at all speeds. -No more run flat kerplunk over road expansion joints/etc. Car eats these up now. -Tires make car handle and feel better, inspires greater driver confidence plus more aggressive cornering ability. All I can say is if you're on the fence- make the change - dump the run flats, and based on my first few hundred miles the S-04's are a superior choice. I also bought a Slime 70005 Safety Spare Flat Tire Repair System just to be safe...
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11-06-2012, 05:49 AM | #2 |
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Thats interesting
What size wheels and suspension set up do you have? Do you feel (and I know this is debated about a lot!) that the numb steering is down to RFTs in the most part so do you know feel the steering is good? Presumably you now have a spare? or carry one of those emergency inflation devices? was the cost expensive, I had to replace a 19" 275 RFT tyre not long ago which came to £399 so a new set of tyres is presumbly not cheap even if non RFT |
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11-06-2012, 07:11 AM | #4 |
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I'm sure normal rubber will give better road feel, as RFTs can dull the steering responses.
I must say, I'm pretty impressed with how my F11 is steering and riding. I'm on 18" Continental Sport Contact 3 SSR tyres. I don't think I'll be changing to non run-flats as I did in the E91. But do feel there would be at least a slight improvement to steering responses, and a little more ride refinement with normal rubber. Simply due to the fact normal rubber hasn't got the negative characteristics of the run-flat. But at least in my setup, I think BMW have done a pretty good job of either masking, or refining RFT behaviour. I don't think changing rubber will give the drastic changes that I found on the E91, we have moved on quite a lot, IMO. HighlandPete |
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11-06-2012, 08:29 AM | #5 | |
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Quote:
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2023 M5 Competition: Marina Bay Blue l Silverstone Merino Leather l Type 789 Rims l Executive Package l Acquired 12/30/2022
Prior BMW's 2011 550iMSport, 2008 5501MSport, 2005 5451, 1993 325iS |
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11-06-2012, 09:15 AM | #6 | |
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11-06-2012, 03:51 PM | #7 |
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I have a 2011 535 Sport Pkg. I just changed the Dunlop RFTs to the Potenza RE 760s.... They are a big improvement over the RFTs in my opinion. I went with the RE 760s because the tread wear rating was better than the S04s. After getting only 18K miles out of the Dunlops I wanted something with a better tread wear rating. I am very pleased with my choice so far.
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11-08-2012, 04:23 PM | #8 |
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Can't beat the Michelin PSS for performance and value. My F10 came with OEM Pirelli P Zero RFTs, switched to Michelin PSS when I upgraded the wheels - night and day difference in ride comfort, noise and grip.
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11-08-2012, 06:21 PM | #9 |
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11-22-2012, 03:24 PM | #10 | |
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In the 335 when I went from RFT to (ultimately) Michelin Pilot Sports, it too was not "drastic" difference in most daily driving situations, even back then. Only when I got near limits was the handling difference marked... however, what WAS quite different on that car was that the Conti RFT's had this grinding low "whirr" that you could hear and feel throughout the entire car. None of the non-RFT options I tried had that same droning grind. Now, interestingly, these stock 19" Goodyear LS2 rft's on my F10 have the same "grindy" feel, though WAAAAAAAaaaay more muted than the 335 (given the nature of the 2 cars), which the e60 also did NOT have (and it did not have rft's). I'm getting ready to ditch these RFTs for something less expensive, more durable, better performing... but I'm wondering if others have noted that same "grindy" feeling of RFTs on their F10's and if they've smoothed it out in their non-rfts? |
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12-02-2012, 08:53 AM | #11 |
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I am not quite sure what you mean by the "grindy" feel, but for sure the non-rft PSS is smoother and more pliant than the rft Contis I had on earlier. The rubber on the PSS seems to absorb the road surface while the Contis just rode over teh bitumen hence transferring a little more "grind"?? But as I said earlier, I noticed the difference but it was not that significant to me. However if your tyres are already due to be changed, then I would still go for the PSS for the slighlty better comfort and performance and lower price, provided you are comfortable with having just a tyre inflator for emergencies.
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12-02-2012, 09:43 AM | #12 |
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Went for non-RFTs for my winter set up and purchased the spare and jack. Can't really speak too intelligently on performance, as they are winters, but appreciate the insight as I plan on putting on non-RFTs after my all-season OEMs wear out.
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12-02-2012, 08:05 PM | #13 |
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Drives: F10 535i 2011, F10 550i 2015
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Unless your driving around America with no AAA or towing companies, Runflats IMO are not important, and are way less comfortable than non runflats
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