New Wheels offset question
03-17-2007, 04:39 PM
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My Ride: 2005 BMW 530D Sport
Hi guys I am getting a set of 20 inch wheels with the following set up:
Front: 20x8.5 ET20 with 245/35/20
Rear: 20x10 ET20(ET35?) with 285/30/20
I will be getting my rear fenders rolled just in case!
I am still unsure if I should get ET20 or ET35 offset for the rear wheels? Someone who knows Please help!
What are your opinions? have I go the correct set up? I have searched and searched the forums and think I have!
Im Still deciding between the wheels below, Comments welcome My E60 is Mystic blue In colour
Thanks in Advance to anyone who reads this!
Front: 20x8.5 ET20 with 245/35/20
Rear: 20x10 ET20(ET35?) with 285/30/20
I will be getting my rear fenders rolled just in case!
I am still unsure if I should get ET20 or ET35 offset for the rear wheels? Someone who knows Please help!
What are your opinions? have I go the correct set up? I have searched and searched the forums and think I have!
Im Still deciding between the wheels below, Comments welcome My E60 is Mystic blue In colour
Thanks in Advance to anyone who reads this!
03-17-2007, 05:00 PM
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My Ride: 2004 525i Jet Black on Grey Interior---
Tint: Sides 20% Rear Windshield 5% Front Windshield 35%
Wheels: Zenetti Five's 20" by 8.5(front) 20" by 10(rear)--
Tires: Pirelli Asimmetrico 245/35/20(front) 285/30/20(rear)--
Body: Hamann Full Front Spoiler, Rieger Side Skirts, Rieger Rear Apron, AC Schnitzer Trunk Wing
Interior: AC Schnitzer Pedal Set and E-Break
Springs: H&R Sport Springs--
Audio: 2 12" Kicker L7's with a Rockford Fosgate 1501bd Amp With Custom Trunk Enclosure
SOON TO COME:
-M5 Mirrors
-M5 Trunk Finsher
-Brembo GT Big Brake Kit
-Hamann 6 Series Front Spliter Molded
-Hamann Roof Wing
-Full Custom Sound System with TV's
hey whats goin on man i talked to you be4 on PM.. good luck with everyhting..however idk about those wheels.. giovanni's? tad blingy for me but not THAT bad..
03-17-2007, 05:07 PM
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Originally Posted by Hamann5' post='404040' date='Mar 18 2007, 01:00 AM
hey whats goin on man i talked to you be4 on PM.. good luck with everyhting..however idk about those wheels.. giovanni's? tad blingy for me but not THAT bad..
I'll prob get one of the black face ones so its not too bling bling.
03-17-2007, 10:33 PM
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im not really knowledgable with the offsets. i would say go for the rear wheels with ET20. i dont know if im wording this correctly, but as an example the stock wheels i had on my 530i were ET20. if you had an offset of 35, the wheels would be too inward of the car. as another example, thats why some guys with the 166 wheels that have an offset in the rear of 28 get spacers (either 10mm spacers to have an offset of 18 or 12mm spacers to have an offset of 16). hope this helps. someone correct me if im wrong.
03-17-2007, 10:49 PM
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My Ride: 535d Sport, carbon black, media pack, visibility pack, grey leather, heated seats, sun protection glass, voice control, Eibach ProKit, 19" 166 style wheels, e-maps ECU remap to 325hp and 640NM, top speed limiter removed
10x20 ET20 will sit perfectly fine in the arch.
ET35 will catch on your suspension.
ET35 will catch on your suspension.
03-18-2007, 05:31 AM
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Originally Posted by olli_535d' post='404134' date='Mar 18 2007, 06:49 AM
10x20 ET20 will sit perfectly fine in the arch.
ET35 will catch on your suspension.
ET35 will catch on your suspension.
Also does anyone have 255/35/20 tyres on the front without any probs? with no fenders rolled..
03-18-2007, 03:47 PM
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My Ride: 04' 530i Sport/premium/cold wx/PDC/xenon.
Originally Posted by olli_535d' post='404134' date='Mar 18 2007, 01:49 AM
10x20 ET20 will sit perfectly fine in the arch.
ET35 will catch on your suspension.
ET35 will catch on your suspension.
Here's what I copy and pasted from the TireRack website. If the offset is positive and increases, why would the tire rub on the suspension?
Doesn't that mean it would extend further out of the wheel well?
The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel. The offset can be one of three types.
Zero Offset
The hub mounting surface is even with the centerline of the wheel.
Positive
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.
Negative
The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset.
If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly. We have test fitted thousands of different vehicles for proper fitment. Our extensive database allows our sales staff to offer you the perfect fit for your vehicle.
http://www.tirerack.com/a.jsp?a=AK1&ur...;currentpage=98
03-18-2007, 11:58 PM
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My Ride: 535d Sport, carbon black, media pack, visibility pack, grey leather, heated seats, sun protection glass, voice control, Eibach ProKit, 19" 166 style wheels, e-maps ECU remap to 325hp and 640NM, top speed limiter removed
Originally Posted by Piloti' post='404375' date='Mar 18 2007, 11:47 PM
OK now I'm really confused!
Here's what I copy and pasted from the TireRack website. If the offset is positive and increases, why would the tire rub on the suspension?
Doesn't that mean it would extend further out of the wheel well?
The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel. The offset can be one of three types.
Zero Offset
The hub mounting surface is even with the centerline of the wheel.
Positive
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.
Negative
The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset.
If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly. We have test fitted thousands of different vehicles for proper fitment. Our extensive database allows our sales staff to offer you the perfect fit for your vehicle.
http://www.tirerack.com/a.jsp?a=AK1&ur...;currentpage=98
Here's what I copy and pasted from the TireRack website. If the offset is positive and increases, why would the tire rub on the suspension?
Doesn't that mean it would extend further out of the wheel well?
The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel. The offset can be one of three types.
Zero Offset
The hub mounting surface is even with the centerline of the wheel.
Positive
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.
Negative
The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset.
If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly. We have test fitted thousands of different vehicles for proper fitment. Our extensive database allows our sales staff to offer you the perfect fit for your vehicle.
http://www.tirerack.com/a.jsp?a=AK1&ur...;currentpage=98
Your theory works on negative offsets.
Been there many times, not only theoretically, but fitting different wheels to all sorts of cars.
This website might be interesting for you, too.
http://www.carbibles.com/tyre_bible.html
By the way, the 35 offsets won't catch on the suspension.
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