2026 Cadillac CT4 Wheel & Tire Sizes
Complete fitment guide for the 2026 Cadillac CT4: factory tire sizes, compatible wheel diameters, widths and offsets, and the 5x115 bolt pattern — for every trim.
Bolt Pattern
5x115
Centre Bore
70.3 mm
TPMS
433 MHz
Factory (OEM) Tire Sizes for the 2026 Cadillac CT4
Front / square fitments
Rear (staggered fitments)
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2026 Cadillac CT4 Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2026 Cadillac CT4 configuration. Trims with different front and rear specs run a staggered setup.
2.0T
Staggered2L
| Spec | Front | Rear |
|---|---|---|
| Wheel diameter | 18–20" | 18–19" |
| Wheel width | 8–8.5" | 8.5–9" |
| Wheel offset | 30–35 mm | 35–40 mm |
| Tire width | 225–235 mm | 0 mm |
2.7T
Staggered2.7L
| Spec | Front | Rear |
|---|---|---|
| Wheel diameter | 18–20" | 18–19" |
| Wheel width | 8–8.5" | 8.5–9" |
| Wheel offset | 30–35 mm | 35–40 mm |
| Tire width | 225–235 mm | 0 mm |
2026 Cadillac CT4 Fitment FAQ
What is the bolt pattern on a 2026 Cadillac CT4?
The 2026 Cadillac CT4 uses a 5x115 bolt pattern (5 lug nuts on a 115 mm circle) with a 70.3 mm centre bore.
What size tires fit a 2026 Cadillac CT4?
Factory (OEM) tire sizes for the 2026 Cadillac CT4 include 225/45R17, 235/40R18, 235/40ZR18, 235/35R19, 235/35ZR19; staggered rear fitments use 265/35ZR18, 265/30ZR19. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2026 Cadillac CT4?
Depending on trim, the 2026 Cadillac CT4 accepts wheels from 18" up to 20" in diameter with the correct width and offset — larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.