2013 Buick Regal Wheel Backspacing
5.65 in · 6.02 in · 6.10 in · 5.11 in · 5.15 in
Quick specs
- Backspacing
- 5.65 in · 6.02 in · 6.10 in · 5.11 in · 5.15 in
- OEM offset
- ET42 · ET45 · ET47 · ET41
- Wheel size
- 8x18 · 8.5x19 · 8.5x20 · 7x17
- Tire size
- Multiple — see configurations
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.0T · 2.0L, I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 235/50R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, I4, Petrol | 8.5x19 | — | ET45 | 6.02 in | 245/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, I4, Petrol | 8.5x20 | — | ET47 | 6.10 in | 255/35R20 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · I4, Petrol | 7x17 | — | ET41 | 5.11 in | 235/50R17 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 235/50R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · I4, Petrol | 8.5x19 | — | ET45 | 6.02 in | 245/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · I4, Petrol | 8.5x20 | — | ET47 | 6.10 in | 255/35R20 | 5x120 | 66.9 mm | M14 x 1.5 |
| 1.6T · I4, Petrol | 7x17 | — | ET42 | 5.15 in | 225/55R17 | 5x115 | 70.3 mm | M14 x 1.5 |
| 2.0T · I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 245/45R18 | 5x115 | 70.3 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 2013 Buick Regal
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.