| Car |
Diameters Allowed (inches) |
F/R |
Min Circum (inches) |
Standard Circum (inches) |
Handicap Circum (inches) |
| 356 |
15, 16 |
|
76.50 |
79.0 |
74.25 |
| 911S, 2.7L |
15 |
|
76.75 |
79.2 |
74.25 |
| 911 Carrera 2.7 |
15 |
|
76.75 |
79.2 |
74.25 |
| 911SC |
15, 16 |
|
76.50 |
79.0 |
74.25 |
| 911 Carrera 3.2 |
15, 16 |
|
75.75 |
78.1 |
73.25 |
| 911 C2/4 |
16, 17 |
F
R |
75.75
75.25 |
78.1
77.5 |
73.25
73.25 |
| 993 |
16, 17 |
F
R |
75.75
75.25 |
78.1
77.5 |
73.25
73.25 |
| 993 C4 |
16, 17 |
F
R |
75.75
75.25 |
78.1
77.5 |
73.25
73.25 |
| 993 C4S |
18 |
F
R |
75.75
75.25 |
78.1
77.5 |
73.5
73.0 |
| 930 |
17, 18 |
F
R |
70.25
72.75 |
72.5
75.5 |
68.0
70.5 |
| 911 Turbo |
16, 17, 18 |
F
R |
75.75
75.25 |
78.1
75.5 |
73.5
73.0 |
| 911 - All others |
14, 15 |
|
76.75 |
79.2 |
74.25 |
| 912, 912E |
14, 15 |
|
76.50 |
79.0 |
74.25 |
| 914/4 |
15 |
|
76.50 |
79.0 |
74.25 |
| 914/6 |
14, 15 |
|
76.75 |
79.2 |
74.25 |
| 924 |
14, 15 |
|
73.50 |
75.8 |
71.25 |
| 924 Turbo |
15, 16 |
|
76.00 |
78.5 |
73.75 |
| 924S |
15, 16 |
|
76.00 |
78.5 |
73.75 |
| 928 (1978-86) |
15, 16 |
|
75.75 |
78.1 |
73.25 |
| 928 (1987-93) |
16, 17 |
F
R |
75.75
75.25 |
78.1
77.5 |
73.25
72.25 |
| 944, 944S |
15, 16 |
|
76.50 |
79.0 |
74.25 |
| 944S2 |
16 |
|
75.75 |
78.1 |
73.25 |
| 944 Turbo (1986-88) |
16 |
|
75.75 |
78.1 |
73.25 |
| 944 Turbo S (1988) |
16 |
|
75.25 |
77.5 |
73.0 |
| 944 Turbo (1989) |
16 |
|
75.25 |
77.5 |
73.0 |
| 968 |
16, 17 |
|
75.75 |
78.1 |
73.25 |
| Boxster |
16, 17 |
|
75.75 |
78.1 |
73.25 |
|