2008 Porsche 911 Wheel Backspacing
6.24 in · 6.42 in · 6.34 in · 6.47 in · 6.22 in · 6.45 in
Quick specs
- Backspacing
- 6.24 in · 6.42 in · 6.34 in · 6.47 in · 6.22 in · 6.45 in
- OEM offset
- ET57 · ET55 · ET53 · ET50 · ET56
- Wheel size
- 8x18 · 8x19 · 8.5x19 · 9x20 · 8.5x20
- Bolt pattern
- 5×130
- Tire size
- 235/40R18 · 235/35R19 · 235/30R20
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 3.6 Carrera · 3.6L, MA 102, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Carrera · 3.6L, MA 102, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Carrera · 3.6L, MA 102, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Carrera 4 · 3.6L, MA 102, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Carrera 4 · 3.6L, MA 102, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Carrera 4 · 3.6L, MA 102, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 GT2 · 3.6L, M 97/70S, F6, Petrol | 8.5x19 | 8.5x19 | ET53 | 6.34 in | 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 GT2 · 3.6L, M 97/70S, F6, Petrol | 9x20 | 8.5x19 | ET50 / ET53 | 6.47 in | 235/30R20 / 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 GT3 · 3.6L, M 97/76, F6, Petrol | 8.5x19 | 8.5x19 | ET53 | 6.34 in | 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 GT3 · 3.6L, M 97/76, F6, Petrol | 8.5x20 | 8.5x19 | ET50 / ET53 | 6.22 in | 235/30R20 / 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 GT3 RS · 3.6L, M 97/76, F6, Petrol | 8.5x19 | 8.5x19 | ET53 | 6.34 in | 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 GT3 RS · 3.6L, M 97/76, F6, Petrol | 8.5x20 | 8.5x19 | ET50 / ET53 | 6.22 in | 235/30R20 / 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Targa 4 · 3.6L, M 102, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Targa 4 · 3.6L, M 102, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Targa 4 · 3.6L, M 102, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Turbo · 3.6L, M 97/70, F6, Petrol | 8.5x19 | 8.5x19 | ET56 | 6.45 in | 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.6 Turbo · 3.6L, M 97/70, F6, Petrol | 8.5x20 | 8.5x19 | ET55 / ET56 | 6.42 in | 235/30R20 / 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera 4S · 3.8L, MA 101, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera 4S · 3.8L, MA 101, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera 4S · 3.8L, MA 101, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera 4S Pk · 3.8L, MA 101S, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera 4S Pk · 3.8L, MA 101S, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera 4S Pk · 3.8L, MA 101S, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera S · 3.8L, MA 101, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera S · 3.8L, MA 101, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera S · 3.8L, MA 101, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera S Pk · 3.8L, MA 101S, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera S Pk · 3.8L, MA 101S, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Carrera S Pk · 3.8L, MA 101S, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 GT3 · 3.8L, M 97/77, F6, Petrol | 8.5x19 | 8.5x19 | ET53 | 6.34 in | 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 GT3 · 3.8L, M 97/77, F6, Petrol | 8.5x20 | 8.5x19 | ET50 / ET53 | 6.22 in | 235/30R20 / 235/35R19 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Targa 4S · 3.8L, M 101, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Targa 4S · 3.8L, M 101, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Targa 4S · 3.8L, M 101, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Targa 4S Pk · M 101S, F6, Petrol | 8x18 | 8x18 | ET57 | 6.24 in | 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Targa 4S Pk · M 101S, F6, Petrol | 8x19 | 8x18 | ET57 | 6.24 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
| 3.8 Targa 4S Pk · M 101S, F6, Petrol | 8.5x19 | 8x18 | ET55 / ET57 | 6.42 in | 235/35R19 / 235/40R18 | 5x130 | 71.6 mm | M14 x 1.5 |
Compare wheel position See wheel offset
Backspacing values above are calculated from OEM wheel width and offset using BS = width/2 + offset_mm/25.4 (same formula as the fitment calculator).
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More specs for the 2008 Porsche 911
Backspacing on these pages is calculated from OEM wheel width and offset (width/2 + offset_mm/25.4). Higher backspacing seats the wheel farther inward; lower backspacing moves it outward.