2021 Cadillac CT4 Wheel Backspacing
5.26 in · 5.38 in
Quick specs
- Backspacing
- 5.26 in · 5.38 in
- OEM offset
- ET32 · ET35
- Wheel size
- 8x17 · 8x18 · 8x19
- Bolt pattern
- 5×115
- Tire size
- 225/45R17 · 235/40R18 · 235/35R19
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.0T · 2.0L, LSY, I4, Petrol | 8x17 | 8x18 | ET32 / ET35 | 5.26 in | 225/45R17 / 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8x18 | 8x18 | ET35 | 5.38 in | 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8x19 | 8x18 | ET35 | 5.38 in | 235/35R19 / 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8x17 | 8x18 | ET32 / ET35 | 5.26 in | 225/45R17 / 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8x18 | 8x18 | ET35 | 5.38 in | 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LSY, I4, Petrol | 8x19 | 8x18 | ET35 | 5.38 in | 235/35R19 / 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.7T · 2.7L, L3B, I4, Petrol | 8x18 | 8x18 | ET35 | 5.38 in | 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.7T · 2.7L, L3B, I4, Petrol | 8x17 | 8x18 | ET32 / ET35 | 5.26 in | 225/45R17 / 235/40R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.7T · 2.7L, L3B, I4, Petrol | 8x19 | 8x18 | ET35 | 5.38 in | 235/35R19 / 235/40R18 | 5x115 | 70.3 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 2021 Cadillac CT4
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.