Run Flat Rims leak air?
07-30-2005, 05:24 AM
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Originally Posted by JDN' date='Jul 30 2005, 07:42 AM
I've never understood the rush to move from non run flats. My OEM run flats are adorned with a star. The star is the designation that the tire was designed specifically for the model BMW that I own. Anything less will compromise performance and may compromise gas mileage and noise level since all were considered in the match of the design to the vehicle. So, why did we buy these cars in the first place -- to compromise?
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07-30-2005, 06:11 AM
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Originally Posted by paasan' date='Jul 30 2005, 08:17 AM
I doubt there is only one "perfect" tyre for your car. Which tyre your car is fitted with, highly depends on what deals BMW have made with the tyre makers. Or am I wrong on this one?
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07-30-2005, 08:34 AM
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Originally Posted by BetterMakeWay' date='Jul 30 2005, 08:24 AM
[quote name='JDN' date='Jul 30 2005, 07:42 AM']I've never understood the rush to move from non run flats. My OEM run flats are adorned with a star. The star is the designation that the tire was designed specifically for the model BMW that I own. Anything less will compromise performance and may compromise gas mileage and noise level since all were considered in the match of the design to the vehicle. So, why did we buy these cars in the first place -- to compromise?
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[/quote]Maybe some of us should not opt for the Sport Package in the first place.
07-30-2005, 09:06 AM
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Originally Posted by JDN' date='Jul 30 2005, 11:34 AM
[quote name='BetterMakeWay' date='Jul 30 2005, 08:24 AM'][quote name='JDN' date='Jul 30 2005, 07:42 AM']I've never understood the rush to move from non run flats. My OEM run flats are adorned with a star. The star is the designation that the tire was designed specifically for the model BMW that I own. Anything less will compromise performance and may compromise gas mileage and noise level since all were considered in the match of the design to the vehicle. So, why did we buy these cars in the first place -- to compromise?
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[/quote]Maybe some of us should not opt for the Sport Package in the first place.
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[/quote]Sport Package doesn't include only stiffer suspension! It includes alot of other things and i dn't mind firm suspension, but there is a difference and u should know that, between stiff suspension and stiff tires. It's a feel u get exactly when u take a tour with your e60 with rft. If you concentrate a bit you can feel the fact that when driving over bumps or uneven surfaces the tires don't take the sock not even a bit, and that's mainly because of the stiffer tire walls...so the suspension takes it all. got my point? if there is a way to improve this...why shouldn't u do it? After all i almost never ever had a flat tire because of tire punctures or smth, mainly because of the craters in the roads here, soooo being extra carefull with the car i can pass this problem and improving my ride quality and handling and road noise a bit with some stunning performace tires aaaannd keepin my sport package as it is. So?
07-30-2005, 02:05 PM
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Does anyone here run nitrogen gas in their tires? The molecules are larger so there is less possibility for leakage. Supposedly, there are no downsides and it is used in racing applications and shipping/trucking fleets. I'm hoping to see this sort of thing at gas stations soon - heck, we have to pay for air anyway - they might as well be giving us something for the money.
http://www.nitrofilltires.com/
http://www.nitrofilltires.com/
07-30-2005, 09:59 PM
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No one considered that the RF wheels are harder for tire people to work with and any decrease in care and preparation of the rim would make any new tire not seat properly and leak slowly.
If leaking down in 2 weeks, that or a bad valve is my first investigation. If only one of the 4 is leaking, then that serves to prove the point I am making. Bead uniformity adjacent to the metal edge of the rim is the first to examine and inspection for tool marks. Remeber too the possiblity of having a rim leak is 50/50 on the inside edge of the wheel so a proper check means taking them off the car. A lazy tire guy will not be as scrupulous in checking the non-visible side of the wheel as he can only see one side at a time during mounting and likely observes the outer, well finished surface during most or all of the tire mounting process. Perhaps during the balancing, the inner edge is looked at but at that point, rim seating is not being thought of so a proper check is skipped.
If leaking down in 2 weeks, that or a bad valve is my first investigation. If only one of the 4 is leaking, then that serves to prove the point I am making. Bead uniformity adjacent to the metal edge of the rim is the first to examine and inspection for tool marks. Remeber too the possiblity of having a rim leak is 50/50 on the inside edge of the wheel so a proper check means taking them off the car. A lazy tire guy will not be as scrupulous in checking the non-visible side of the wheel as he can only see one side at a time during mounting and likely observes the outer, well finished surface during most or all of the tire mounting process. Perhaps during the balancing, the inner edge is looked at but at that point, rim seating is not being thought of so a proper check is skipped.
07-31-2005, 12:22 AM
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Originally Posted by UUronL' date='Jul 31 2005, 12:05 AM
Does anyone here run nitrogen gas in their tires?? The molecules are larger so there is less possibility for leakage.? Supposedly, there are no downsides and it is used in racing applications and shipping/trucking fleets.? I'm hoping to see this sort of thing at gas stations soon - heck, we have to pay for air anyway - they might as well be giving us something for the money.
http://www.nitrofilltires.com/
http://www.nitrofilltires.com/
[snapback]154665[/snapback]
My experience with Pirelli P6000, Michelin Pilot, Conti SP2 is that they nearly not leak.
07-31-2005, 11:29 AM
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Originally Posted by FJPM' date='Jul 31 2005, 03:22 AM
[quote name='UUronL' date='Jul 31 2005, 12:05 AM']Does anyone here run nitrogen gas in their tires?? The molecules are larger so there is less possibility for leakage.? Supposedly, there are no downsides and it is used in racing applications and shipping/trucking fleets.? I'm hoping to see this sort of thing at gas stations soon - heck, we have to pay for air anyway - they might as well be giving us something for the money.
http://www.nitrofilltires.com/
http://www.nitrofilltires.com/
[snapback]154665[/snapback]
My experience with Pirelli P6000, Michelin Pilot, Conti SP2 is that they nearly not leak.
[snapback]154760[/snapback]
[/quote]Interesting. Perhaps France is ahead of the curve on this particular issue. I don't know what the makeup of compressed air is in the US so I suppose it could be anything, but I always thought it was oxygen.
08-02-2005, 02:31 AM
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so come on guys, anone to 100% confirm either leak or no-leak after going from RF's to NON-RF's tyres ?
is the original BMW wheel really that different?
is the original BMW wheel really that different?
08-02-2005, 05:27 AM
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Originally Posted by UUronL' date='Jul 31 2005, 09:29 PM
[quote name='FJPM' date='Jul 31 2005, 03:22 AM'][quote name='UUronL' date='Jul 31 2005, 12:05 AM']Does anyone here run nitrogen gas in their tires?? The molecules are larger so there is less possibility for leakage.? Supposedly, there are no downsides and it is used in racing applications and shipping/trucking fleets.? I'm hoping to see this sort of thing at gas stations soon - heck, we have to pay for air anyway - they might as well be giving us something for the money.
http://www.nitrofilltires.com/
http://www.nitrofilltires.com/
[snapback]154665[/snapback]
My experience with Pirelli P6000, Michelin Pilot, Conti SP2 is that they nearly not leak.
[snapback]154760[/snapback]
[/quote]Interesting. Perhaps France is ahead of the curve on this particular issue. I don't know what the makeup of compressed air is in the US so I suppose it could be anything, but I always thought it was oxygen.
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[/quote]I confirm that the air that we are breathing is 78 % nitrogen and 21 oxigen.
I it was oxigen only: it would be highly flammable...