2018 Cadillac XTS Wheel Backspacing
5.79 in · 5.63 in · 5.76 in · 5.88 in
Quick specs
- Backspacing
- 5.79 in · 5.63 in · 5.76 in · 5.88 in
- OEM offset
- ET39 · ET35 · ET32
- Wheel size
- 8.5x20 · 8.5x21 · 9x22 · 9x21 · 8.5x19
- Bolt pattern
- 5×120
- Tire size
- 245/40R20 · 255/35R21 · 255/30R22 · 245/45R19
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 3.6T · 3.6L, LF3, V6, Petrol | 8.5x20 | — | ET39 | 5.79 in | 245/40R20 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6T · 3.6L, LF3, V6, Petrol | 8.5x21 | — | ET35 | 5.63 in | 255/35R21 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6T · 3.6L, LF3, V6, Petrol | 9x22 | 9x22 | ET32 / ET25 | 5.76 in | 255/30R22 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6i · 3.6L, LFX, V6, Petrol | 8.5x20 | 8.5x19 | ET39 | 5.79 in | 245/40R20 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6i · 3.6L, LFX, V6, Petrol | 9x21 | 8.5x19 | ET35 / ET39 | 5.88 in | 255/35R21 / 245/45R19 | 5x120 | 66.9 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 2018 Cadillac XTS
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.