Disc sizes of BMW 8er

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The number of disk modifications for the 8er is: (pcs).

General parameters:
  • Offset (ET): 20;
  • Drilling (PCD): 5x120;
  • Center hole (DIA): -.

Important: wheel disc parameter PCD indicates not only the diameter of circumference of the mounting holes, but also the number of mounting bolts or nuts (for example: 5x120, where 120 (mm) is the diameter of centers of the mounting holes, and 5 is the number of mounting bolts).
Possible disk sizes for BMW 8er:
  • 17x8.0
Procedure for calculating the disc offset:

The distance between mating face of the wheel (the face with which the disk is pressed against the hub) and the middle of the width of disk is called disk offset (ET).

The formula for calculating:

ET = A - B/2, where:

A is the distance between the inner plane of disk and the part in contact with the hub;

B is disk width.

The disk offset affects the width of the vehicle wheelbase, since the distance between the centers of symmetry (in width) of wheels on one axis directly depends on this parameter.

Important: PCD of disks with four fixing bolts (or nuts) corresponds to the distance between the centers of opposite bolts (or nuts), PCD of disks with five fixing bolts (or nuts) corresponds to the distance between the centers of any non-adjacent bolts (or nuts) multiplied by the coefficient 1.051.

Wheel disks - full drawing
Possible disk parameters for BMW 8er
General view spravka
General view

Disk spravka
Possible disk sizes for BMW 8er of different years of manufacture and modifications

Wheel spravka
Possible wheel sizes for BMW 8er of different years of manufacture and modifications

ET (mm) spravka
Disk offset

Distance between the vertical plane of symmetry of the wheel and the plane of contact of the disk to the hub.

Measured in millimeters (mm)

Dimensions wheel disks

(General view)		17''
17x8.0
20
Table of disc sizes of BMW 8er modifications
Year spravka
Model year of manufacture

Size spravka
Disk size in format:

1. D - diameter of the disk in inches.

2. x - a sign indicating the inseparability of the disk.

3. B - disk width in inches.

spravka

ET (mm) spravka
Disc offset:

Distance between the vertical plane of symmetry of the wheel and the plane of contact of the disc to the hub.

spravka

PCD (mm) spravka
Disc drilling:

1. Number of bolt holes.

2. Diameter of the circle on which the mounting holes are located.

spravka

Tire spravka
Tire size in format:

1. Width of the work face.

2. Percentage of profile height to width.

3. R - type of construction (radial) - inner diameter (in inches).

spravka

DIA (mm) spravka
Center hole:

Diameter of center hole, another marking is CH.

spravka
BMW 8-series
199017x8.0205x120235/45R17x
BMW 8-series E31 840 Ci
199017x8.0205x120235/45R17x
199017x8.0205x120255/40R17x
199017x8.0205x120245/40R17x
199117x8.0205x120245/40R17x
199117x8.0205x120235/45R17x
199117x8.0205x120255/40R17x
199217x8.0205x120235/45R17x
199217x8.0205x120255/40R17x
199217x8.0205x120245/40R17x
199317x8.0205x120235/45R17x
199317x8.0205x120255/40R17x
199317x8.0205x120245/40R17x
199417x8.0205x120255/40R17x
199417x8.0205x120245/40R17x
199417x8.0205x120235/45R17x
199517x8.0205x120235/45R17x
199517x8.0205x120255/40R17x
199517x8.0205x120245/40R17x
199617x8.0205x120255/40R17x
199617x8.0205x120245/40R17x
199617x8.0205x120235/45R17x
199717x8.0205x120235/45R17x
199717x8.0205x120255/40R17x
199717x8.0205x120245/40R17x
199817x8.0205x120245/40R17x
199817x8.0205x120235/45R17x
199817x8.0205x120255/40R17x
199917x8.0205x120235/45R17x
199917x8.0205x120255/40R17x
199917x8.0205x120245/40R17x
BMW 8-series E31 850i
199017x8.0205x120255/40R17x
199017x8.0205x120245/40R17x
199017x8.0205x120235/45R17x
199117x8.0205x120235/45R17x
199117x8.0205x120255/40R17x
199117x8.0205x120245/40R17x
199217x8.0205x120245/40R17x
199217x8.0205x120235/45R17x
199217x8.0205x120255/40R17x
199317x8.0205x120235/45R17x
199317x8.0205x120255/40R17x
199317x8.0205x120245/40R17x
199417x8.0205x120235/45R17x
199417x8.0205x120255/40R17x
199417x8.0205x120245/40R17x
199517x8.0205x120235/45R17x
199517x8.0205x120255/40R17x
199517x8.0205x120245/40R17x
199617x8.0205x120235/45R17x
199617x8.0205x120255/40R17x
199617x8.0205x120245/40R17x
199717x8.0205x120255/40R17x
199717x8.0205x120245/40R17x
199717x8.0205x120235/45R17x
199817x8.0205x120235/45R17x
199817x8.0205x120255/40R17x
199817x8.0205x120245/40R17x
199917x8.0205x120245/40R17x
199917x8.0205x120235/45R17x
199917x8.0205x120255/40R17x

Warning: despite the fact that the data are official figures of manufacturers, the above information is for reference only and does not guarantee unambiguous accuracy.


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