LCI Cars and Run Flat Tyres
08-11-2009, 12:37 PM
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My Ride: 520d F10, Sport Auto, Black, sun protection, Oyster/Black with Anthracite, Ambient lighting.
Has anyone changed the original Run Flat Tyres for conventional tyres on an LCI E61 and if so what tyre pressure are you using?
I have changed my Goodyear NCT5 Run Flats for Pirelli P Zero Rosso conventional tyres and am not sure what pressures to use, am running normal pressures at the moment and the car seems to wander a bit!
I have changed my Goodyear NCT5 Run Flats for Pirelli P Zero Rosso conventional tyres and am not sure what pressures to use, am running normal pressures at the moment and the car seems to wander a bit!
08-14-2009, 06:20 AM
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The suspension on BMWs with RFTs is optimized for the stiffer sidewall tires. Replacement non-RFTs have less-stiff sidewalls so you may need to adjust your tire pressure upward a couple of lbs/psi over and above the settings recommended on the sticker on the driver door post.
08-14-2009, 06:22 AM
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Originally Posted by luigi524td' post='976406' date='Aug 14 2009, 07:20 AM
The suspension on BMWs with RFTs is optimized for the stiffer sidewall tires. Replacement non-RFTs have less-stiff sidewalls so you may need to adjust your tire pressure upward a couple of lbs/psi over and above the settings recommended on the sticker on the driver door post.
08-16-2009, 10:36 AM
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My Ride: december 2011 525d SE
How did you manage to do that then ??
Ive Been Told The 17" Rimms on my 2005 525d are specificly designed for run flat tyres Only.
I replaced all of my tyres in March 09 with B/Stone Runflats and Now 5000 miles later have picked up two punctures and have had to change two of the tyres again.
I would love to change to Non RunFlats but my local BMW Stealer and BMW UK have both said I would have to change the Rims, As the wheels are for run flats only!!
Have you just changed the Tyres or Have you changed The wheels as well ??
Cheers
martin
Ive Been Told The 17" Rimms on my 2005 525d are specificly designed for run flat tyres Only.
I replaced all of my tyres in March 09 with B/Stone Runflats and Now 5000 miles later have picked up two punctures and have had to change two of the tyres again.
I would love to change to Non RunFlats but my local BMW Stealer and BMW UK have both said I would have to change the Rims, As the wheels are for run flats only!!
Have you just changed the Tyres or Have you changed The wheels as well ??
Cheers
martin
08-16-2009, 12:17 PM
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My Ride: Oct 2007: 525d SE Auto, Space Grey, Black Leather, Visibility Pack, Luxury Pack, Media Pack, Rear Air Bags, Space Saver Spare, Comfort Access, Auto Dim mirror + Ext folding, Through Load System, All round heated seats, Extended interior light pack, DAB, Logic 7, USB Interface and HUD.
I'm quite keen to know others with LCI who have made the change too. I will need 2 rear tyres soon, had a puncture twice in the same front (2 weeks apart) tyre, so ended up getting a single Goodyear NCT5 RFT each time.
I specifically asked BMW over wheels (I have style 243), their response was...
As I already have the space saver spare, a change could be on the cards. Just unsure what negative effect, if any, the change will have...
I specifically asked BMW over wheels (I have style 243), their response was...
We chose to include Run-flat technology on our vehicles for the following reasons:
? It is dangerous to stop on any road to change a tyre, especially on a motorway or at night.
? There is no need to have to wait for a breakdown service to arrive.
? Safety and security of the driver and passenger(s) is maintained.
? Alloy wheels are difficult to detach from steel hubs.
? On most cars the spare is under the contents of the boot, and uses boot space.
? It can be tricky to line up the wheel bolt holes with the hub screw holes and match the thread.
? The dirty punctured tyre needs to be removed and stored in the boot.
? Another puncture before the punctured tyre is mended means one is stranded.
? A driver can continue for 150 miles at 50mph with a punctured Run-flat tyre.
All of our vehicles that use Run-flat technology have their suspension and braking components set up to accommodate Run-flat tyres. Should you decide to change to non Run-flats, it may alter the driving and handling characteristics of your vehicle. It is for this reason that this modification is not recommended by BMW as a manufacturer.
However, it is possible to have standard tyres fitted. You will additionally need to purchase either a spare wheel with jack and brace set or a mobility kit which can be ordered from the Parts Department of your nearest BMW Approved Dealership.
Please do not hesitate to contact me if you have any further queries.
? It is dangerous to stop on any road to change a tyre, especially on a motorway or at night.
? There is no need to have to wait for a breakdown service to arrive.
? Safety and security of the driver and passenger(s) is maintained.
? Alloy wheels are difficult to detach from steel hubs.
? On most cars the spare is under the contents of the boot, and uses boot space.
? It can be tricky to line up the wheel bolt holes with the hub screw holes and match the thread.
? The dirty punctured tyre needs to be removed and stored in the boot.
? Another puncture before the punctured tyre is mended means one is stranded.
? A driver can continue for 150 miles at 50mph with a punctured Run-flat tyre.
All of our vehicles that use Run-flat technology have their suspension and braking components set up to accommodate Run-flat tyres. Should you decide to change to non Run-flats, it may alter the driving and handling characteristics of your vehicle. It is for this reason that this modification is not recommended by BMW as a manufacturer.
However, it is possible to have standard tyres fitted. You will additionally need to purchase either a spare wheel with jack and brace set or a mobility kit which can be ordered from the Parts Department of your nearest BMW Approved Dealership.
Please do not hesitate to contact me if you have any further queries.
08-17-2009, 04:48 AM
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My Ride: E61 sold nice E91 335i Sport Touring now
Lots of dicussion on this subject on BMWland forum and it seems that removing the runflats gives a far better ride.
I recently replaced my two rears and was tempted to go for non run flats but decided to stick with them.
I recently replaced my two rears and was tempted to go for non run flats but decided to stick with them.
08-17-2009, 05:56 AM
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My Ride: 535d M Sport - Visibilty, Media, Logic7, Heated Comfort Seats, too many other extras to list
I swapped my 18" on RFTs to 19" with normal tyres (Conti's) the wheel/tyre combination is lighter giveing better take off and handling, and the ride is not as harsh or wandery - I have a pre-LCI however, which seem to have been setup for non-RFT's (or at least BMW did a bad bad job of setting them up for RFTs)
Its a winner all around - only problem is I now need a spare or at least a can of tyre weld.
Its a winner all around - only problem is I now need a spare or at least a can of tyre weld.
08-17-2009, 12:55 PM
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My Ride: 520d F10, Sport Auto, Black, sun protection, Oyster/Black with Anthracite, Ambient lighting.
Originally Posted by fifthinarow' post='978387' date='Aug 16 2009, 07:36 PM
How did you manage to do that then ??
Ive Been Told The 17" Rimms on my 2005 525d are specificly designed for run flat tyres Only.
I replaced all of my tyres in March 09 with B/Stone Runflats and Now 5000 miles later have picked up two punctures and have had to change two of the tyres again.
I would love to change to Non RunFlats but my local BMW Stealer and BMW UK have both said I would have to change the Rims, As the wheels are for run flats only!!
Have you just changed the Tyres or Have you changed The wheels as well ??
Cheers
martin
Ive Been Told The 17" Rimms on my 2005 525d are specificly designed for run flat tyres Only.
I replaced all of my tyres in March 09 with B/Stone Runflats and Now 5000 miles later have picked up two punctures and have had to change two of the tyres again.
I would love to change to Non RunFlats but my local BMW Stealer and BMW UK have both said I would have to change the Rims, As the wheels are for run flats only!!
Have you just changed the Tyres or Have you changed The wheels as well ??
Cheers
martin
08-17-2009, 01:40 PM
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My Ride: 2004 March E60 530i, Titanium Silver with Black Dakota Leather, Style 124 18" Alloy, Active Steering, Adaptive headlights, Auto-Dim Int+Folding Ext Mirrors, Auto Aircon Advanced, Brushed Aluminium Trim, CD Changer, Comfort Seats, De-Chrome, Dynamic Drive, Electric Glass Sun Roof, Graduate Tinted Windscreen, Heated Front Seats, Natvigation Professional, Sport Steering wheel, Sun Protection Glass, TV function
While we are talking on this topic, does anyone know what's the difference between Run flat tyres and Reinforced tyres? I'm thinking about ditching the run-flat and move back to conventional tyres for ride comfort, came across some called reinforced at blackcircles.com. Not sure if I need a space saver for those, can anyone help? Thanks.