Disc sizes of Alfa Romeo
 Limit parameters for all models: Tire size: from 58.1 to 65.1;Disk size: from 10 to 49. Possible disk sizes for Alfa Romeo (Альфа Ромео): Important: main parameters of a vehicle wheel: width (B), diameter (D), diameter of circumference of the mounting holes (PCD), disk offset (ET), diameter of a center hole (DIA). Formula for calculating the disk 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 offset is calculated using the following formula:ET = A - B/2, where:A is the distance between the inner face of the disk and the part in contact with the hub;B is disk width.There are discs with a negative offset and a positive offset, if the middle of the disc matches the face of attachment of the disc to the hub, then the disc offset will be zero.Important: the main parameters of vehicle wheel discs have the following units: width (inches), diameter (inches), diameter of circumference of the mounting holes (mm), disk offset (mm), diameter of a center hole (mm).
Wheel disks - full drawing
General parameters of Alfa Romeo discs
General view
General view

Disk
Possible disk sizes for Alfa Romeo of different years of manufacture and modifications

Wheel
Possible wheel sizes for Alfa Romeo of different years of manufacture and modifications

Tire
Maximum tire sizes for Alfa Romeo of different years of manufacture and modifications

(General view)
from 10 to 49from 58.1 to 65.1
General parameters of discs for all Alfa Romeo models
Size
Disk size in format:

1. D - diameter of the disk in inches.

3. B - disk width in inches.

D (in)
Disk diameter in (in):

Nominal size of outer diameter (2xR) of the disk in inches.

D (cm)
Disc diameter in (cm):

Nominal size of outer diameter (2xR) of the disc in centimeters.

B (in)
Disk width in (in):

Nominal disk width (excluding the protective belt) in inches.

B (cm)
Disk width in (cm):

Nominal disk width (excluding the protective belt) in centimeters.

37
3793.980
43
43109.220
35
3588.90
38
3896.520
31
3178.740
49
49124.460
34
3486.360
32
3281.280
40
40101.60
41
41104.140
36.5
36.592.710
36
3691.440
39
3999.060
33
3383.820
30
3076.20
45
45114.30
46
46116.840
25
2563.50
22
2255.880
20
2050.80
28
2871.120
10
1025.40
29
2973.660