Tire specs
- Load index
- 99
- Speed rating
- W (168 mph)
- Load range
- Extra load (XL)
- Tread depth
- 9/32"
- Item #
- 2454020PIR3816900
2017 Cadillac CT6 Platinum
34 tire results
Factory-size matches for your vehicleContinental
245/40ZR20 99Y XL BW
30,000 miles
View tire detailsThe factory tire size for the 2017 Cadillac CT6 Platinum is 245/40R20.
The catalog lists it at load index 99, speed rating Y (up to 186 mph).
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| All wheels | 245/40R20 | 99 | Y |
Confirm the size printed on the sidewall of your current tire or on the tire placard in the driver's door jamb before you buy. Replacement tires should meet or exceed the vehicle's load index and speed rating.