So I changed tires, now it feels like I'm steering a boat.
07-14-2009, 04:45 PM
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Originally Posted by stealthology' post='942113' date='Jul 14 2009, 04:36 PM
I have a 2005 545i Sport manual, purchased about a month ago. The tires which were on the car were Dunlop Sport SP 01's (they are summer performance tires). The rears were getting extremely low on tread, so I decided to just replace those. I replaced the rears with Bridgestone Potenza RE960's.
My car's handling is not very confident at all right now. Before, I could speed right through curves without second guessing the car. Now, I start getting a little nervous when doing so. It feels like the car is floating. I feel like the car is going to tip over taking a slight curve at around 70 or so. Is this mostly due to having 2 new brand new tires on there? Does this have to do with the break in period? Or could this have to do with summer tires up front and ultra high performance all season's in the back?
Thanks!
Dan
My car's handling is not very confident at all right now. Before, I could speed right through curves without second guessing the car. Now, I start getting a little nervous when doing so. It feels like the car is floating. I feel like the car is going to tip over taking a slight curve at around 70 or so. Is this mostly due to having 2 new brand new tires on there? Does this have to do with the break in period? Or could this have to do with summer tires up front and ultra high performance all season's in the back?
Thanks!
Dan
07-14-2009, 05:24 PM
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My Ride: 2004 BMW 545i Sport Package, Titanium Gray II Metallic, Wheel Style 124
had same experience
i was not sure if you already had the alignment but please do so with a authorized BMW shop... its a MUST you will feel it in the steering wheel and tight "U" turns
i was not sure if you already had the alignment but please do so with a authorized BMW shop... its a MUST you will feel it in the steering wheel and tight "U" turns
07-14-2009, 07:25 PM
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My Ride: 2007 530i. Purchased 6/28/07. Titanium Silver Metallic, Black Dakota Leather, Dark Poplar Trim, Steptronic, Premium Package, Cold Weather Package, Bluetooth, Adaptive Control Xenons. 10/30/07 Added OEM 124s with 245/40/18 & 275/35/18 Michelin Pilot Sport A/S tires. Installed red Cal Covers� from BavAuto. 11/21/07 Added OEM all-weather floor mats (for winter, carpet in summer) and coat rack. 6/26/08 installed M5-style rear spoiler. 6/30/08 put on red reflectors. 8/22/08 Euro turn signal stickers applied. 3/20/09 Installed Shadowline Trim. 3/27/09 Added Matte Black Kidney Grilles from Trinity. 4/03/09 Installed Bimmian Shadow Matte Black 530i Badges. 4/04/09 Installed LED license plate lights from Trinity. 5/01/09 Installed Brabus Interior LED Kit and White Angel Eyes. 5/02/09 Put in Brabus 6K Fogs. 5/14/09 Removed charcoal filter. 5/15/09 Installed light smoke LED side marker lamps from Trinity. 5/21/09 Sprint Booster. 6/12/09 Painted exhaust tips flat black. 6/13/09 Pulled red Cal Covers and painted calipers low gloss black. 6/27/09 RPI Ram Air Scoop from Trinity. 8/15/09 Installed Brabus's silver invisibulbs front and rear. 9/24/09 Installed R-Dash license plate LEDs from Brabaus (John).
You're fine. It's just the thickness of the new tread. Some fanatics have their tires "shaved" to avoid this. It's even more pronounced if your other tires were really bald. As was mentioned earlier, give it some time.
07-14-2009, 08:17 PM
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My Ride: BMW 535xi
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Originally Posted by sdg1871' post='942259' date='Jul 14 2009, 04:55 PM
Do not mix tires. You do not want front and rears with different rubber compounds and tread patterns as this will make the grip levels uneven and you do not want different sidewall stiffnesses as this can affect stability, ride, response, etc.
Mixing summer tires with all seasons is asking for trouble in the twisties.
My own practice is that I run 2 sets of wheels: summer performance tires in the spring, summer and fall and dedicated snows in the winter.
I do not like all seasons for the non Xi cars as they have neither the grip of summer performance tires or the snow traction of a dedicated snows.
Mixing summer tires with all seasons is asking for trouble in the twisties.
My own practice is that I run 2 sets of wheels: summer performance tires in the spring, summer and fall and dedicated snows in the winter.
I do not like all seasons for the non Xi cars as they have neither the grip of summer performance tires or the snow traction of a dedicated snows.
07-14-2009, 08:23 PM
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My Ride: Mach5 05' 530i Black Sapphire Metallic w/Auburn Leather Seats, Heated Front/Rear Seats, Cold Weather Pkg, Premium Pkg, Sports Pkg, Xenon Headlights, NAV, Mud Flaps, 20" 166 Style Rims
Model Year: 2005
Engine: N54
Originally Posted by stealthology' post='942113' date='Jul 14 2009, 04:36 PM
I have a 2005 545i Sport manual, purchased about a month ago. The tires which were on the car were Dunlop Sport SP 01's (they are summer performance tires). The rears were getting extremely low on tread, so I decided to just replace those. I replaced the rears with Bridgestone Potenza RE960's.
My car's handling is not very confident at all right now. Before, I could speed right through curves without second guessing the car. Now, I start getting a little nervous when doing so. It feels like the car is floating. I feel like the car is going to tip over taking a slight curve at around 70 or so. Is this mostly due to having 2 new brand new tires on there? Does this have to do with the break in period? Or could this have to do with summer tires up front and ultra high performance all season's in the back?
Thanks!
Dan
My car's handling is not very confident at all right now. Before, I could speed right through curves without second guessing the car. Now, I start getting a little nervous when doing so. It feels like the car is floating. I feel like the car is going to tip over taking a slight curve at around 70 or so. Is this mostly due to having 2 new brand new tires on there? Does this have to do with the break in period? Or could this have to do with summer tires up front and ultra high performance all season's in the back?
Thanks!
Dan
Dan, that's the big problem right there.
Can't mix brands.
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