2026 Cadillac Optiq Wheel & Tire Sizes
Complete fitment guide for the 2026 Cadillac Optiq: factory tire sizes, compatible wheel diameters, widths and offsets, and the 6x120 bolt pattern — for every trim.
Bolt Pattern
6x120
Centre Bore
67.1 mm
TPMS
433 MHz
Factory (OEM) Tire Sizes for the 2026 Cadillac Optiq
OEM sizes
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2026 Cadillac Optiq Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2026 Cadillac Optiq configuration.
Sport 1 EV
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–26" |
| Wheel width | 8.5–10.5" |
| Wheel offset | 5–55 mm |
| Tire width | 245–265 mm |
Sport 2 EV
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–26" |
| Wheel width | 8.5–10.5" |
| Wheel offset | 5–55 mm |
| Tire width | 245–265 mm |
2026 Cadillac Optiq Fitment FAQ
What is the bolt pattern on a 2026 Cadillac Optiq?
The 2026 Cadillac Optiq uses a 6x120 bolt pattern (6 lug nuts on a 120 mm circle) with a 67.1 mm centre bore.
What size tires fit a 2026 Cadillac Optiq?
Factory (OEM) tire sizes for the 2026 Cadillac Optiq include 245/50R20. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2026 Cadillac Optiq?
Depending on trim, the 2026 Cadillac Optiq accepts wheels from 18" up to 26" 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.