Offset questions
08-18-2009, 11:53 PM
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I am confused on...What is Offset like:
M5 offset
- Front: ET 12
- Rear: ET28
E12 is also known as 8.5?
and E28 is also known as 9.5?
Q: so if you buy a replica M5 rims..and have a 8.5 and 9.5, then this should fit your 5 series non-sport?
Q: Where in the rims can you see the offset?
M5 offset
- Front: ET 12
- Rear: ET28
E12 is also known as 8.5?
and E28 is also known as 9.5?
Q: so if you buy a replica M5 rims..and have a 8.5 and 9.5, then this should fit your 5 series non-sport?
Q: Where in the rims can you see the offset?
08-19-2009, 05:28 AM
#2
google tyre bible and they have a good write up on all that stuff. in very concise terms
Offset is how far the wheel sticks out (how flush is it with the fender). More offset it is further stuck "in" and more distance is between the outer wheel and fender. Less offset is the wheel si more flush with the fender, more "pushed out" from the car.
8.5 and 9.5 refers to the wheel sizes of the front and rear on the wheels. in inches. So a common non-xi offset and wheels is something like
Front- 8.5 inch wide wheel that have 15 offsets
rear 9.5 inch wheel with a 20 offset
Something like that but the tyre bible read is very informative
Offset is how far the wheel sticks out (how flush is it with the fender). More offset it is further stuck "in" and more distance is between the outer wheel and fender. Less offset is the wheel si more flush with the fender, more "pushed out" from the car.
8.5 and 9.5 refers to the wheel sizes of the front and rear on the wheels. in inches. So a common non-xi offset and wheels is something like
Front- 8.5 inch wide wheel that have 15 offsets
rear 9.5 inch wheel with a 20 offset
Something like that but the tyre bible read is very informative
08-19-2009, 05:33 AM
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Originally Posted by Diamond' post='981906' date='Aug 19 2009, 09:28 AM
google tyre bible and they have a good write up on all that stuff. in very concise terms
Offset is how far the wheel sticks out (how flush is it with the fender). More offset it is further stuck "in" and more distance is between the outer wheel and fender. Less offset is the wheel si more flush with the fender, more "pushed out" from the car.
8.5 and 9.5 refers to the wheel sizes of the front and rear on the wheels. in inches. So a common non-xi offset and wheels is something like
Front- 8.5 inch wide wheel that have 15 offsets
rear 9.5 inch wheel with a 20 offset
Something like that but the tyre bible read is very informative
Offset is how far the wheel sticks out (how flush is it with the fender). More offset it is further stuck "in" and more distance is between the outer wheel and fender. Less offset is the wheel si more flush with the fender, more "pushed out" from the car.
8.5 and 9.5 refers to the wheel sizes of the front and rear on the wheels. in inches. So a common non-xi offset and wheels is something like
Front- 8.5 inch wide wheel that have 15 offsets
rear 9.5 inch wheel with a 20 offset
Something like that but the tyre bible read is very informative
08-19-2009, 06:09 AM
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Originally Posted by futurerx06' post='981915' date='Aug 19 2009, 08:33 AM
so basically your saying the offset is not known as the ET? I tried tyre bible, it didnt mention anything about offset
08-19-2009, 07:54 AM
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My Ride: 2008 Alpine White 550i Sport, Cream Beige Interior, 6-Sp Manual - retired 9/2011
Originally Posted by futurerx06' post='981987' date='Aug 19 2009, 10:36 AM
if the car rim Rear is ET 15..does that fit 2004 525i series?
With 8.5" front, the lowest offset you can use is ET12 or so.
With 9.5" rear, the lowest offset is ET17.....assuming the fenders are not modified, or rolled, and with the typical staggered tire sizes.
08-19-2009, 08:20 AM
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Originally Posted by DrLev99' post='982051' date='Aug 19 2009, 08:54 AM
Not if it's a 9.5" rear wheel. The offsets should be on the back of the rim, where the spokes-area is.
With 8.5" front, the lowest offset you can use is ET12 or so.
With 9.5" rear, the lowest offset is ET17.....assuming the fenders are not modified, or rolled, and with the typical staggered tire sizes.
With 8.5" front, the lowest offset you can use is ET12 or so.
With 9.5" rear, the lowest offset is ET17.....assuming the fenders are not modified, or rolled, and with the typical staggered tire sizes.
+1 there is usually a stamp on the rear of the rim on one of the spokes detailing the offsets - ET XX
Especially on OEM rims ti shouldn't be too hard to find.
08-19-2009, 10:05 AM
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ET (= offset): Offset is the distance from a wheel's mounting surface on the hub to the centerline of the wheel, in millimeters. Negative offset means the mounting surface is towards the inside of the wheel. With positive offset, this surface is biased towards the outside. Typically, wider tires require more positive offset to avoid contact on the inner fender well.
8,5 or 9,5 is the width of the wheel in inches like mentioned earlier.
8,5 or 9,5 is the width of the wheel in inches like mentioned earlier.
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