2006 BMW Z4 Wheel Backspacing
5.81 in · 5.35 in · 5.85 in · 5.36 in · 5.65 in
Quick specs
- Backspacing
- 5.81 in · 5.35 in · 5.85 in · 5.36 in · 5.65 in
- OEM offset
- ET46 · ET47 · ET41 · ET42
- Wheel size
- 8x17 · 7x16 · 8x18 · 7.5x18
- Bolt pattern
- 5×120
- Tire size
- Multiple — see configurations
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 3.0i · 3.0L, N52B30, I6, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 3.0i · 3.0L, N52B30, I6, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 205/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 3.0si · 3.0L, N52B30, I6, Petrol | 8x17 | 8x17 | ET46 | 5.81 in | 225/45R17 | 5x120 | 72.6 mm | M12 x 1.5 |
| 3.0si · 3.0L, N52B30, I6, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.0i · 2.0L, N46B20, I4, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 225/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.0i · 2.0L, N46B20, I4, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 205/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.0i · 2.0L, N46B20, I4, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5i · N52B25A, I6, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 225/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5i · N52B25A, I6, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 205/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5i · N52B25A, I6, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5si · 2.5L, N52B25A, I6, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 225/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5si · 2.5L, N52B25A, I6, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 205/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5si · 2.5L, N52B25A, I6, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| M 3.2i · 3.2L, S54B32, I6, Petrol | 7.5x18 | 8x18 | ET41 / ET42 | 5.36 in | 225/40R18 / 225/45R18 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5i (ABA-BU25) · N52B25A, I6, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 225/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5i (ABA-BU25) · N52B25A, I6, Petrol | 7x16 | 7x16 | ET47 | 5.35 in | 205/55R16 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 2.5i (ABA-BU25) · N52B25A, I6, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 3.0si (ABA-BU30) · N52B30A, I6, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| 3.0si (ABA-DU30) · N52B30A, I6, Petrol | 8x17 | 7x16 | ET46 / ET47 | 5.81 in | 225/45R17 / 225/50R16 | 5x120 | 72.6 mm | M12 x 1.5 |
| M Coupe (ABA-DU32) · 326S4, I6, Petrol | 8x18 | 8x18 | ET42 | 5.65 in | 225/45R18 | 5x120 | 72.6 mm | M12 x 1.5 |
| M Roadster (ABA-BT32) · 326S4, I6, Petrol | 8x18 | 8x18 | ET42 | 5.65 in | 225/45R18 | 5x120 | 72.6 mm | M12 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 2006 BMW Z4
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.