Spec Sizes

2021 Cadillac CT4 Tire Size

Confirmed OEM tire sizes for this model year. Multiple sizes may apply depending on trim and wheel package — all catalog options are listed.

  • Option225/45R17
  • Option235/35R19
  • Option235/40R18
225/45R17Section width 225 mmSidewall ~101 mm(45% of width)Rim 17"225/45R17225 = width45 = aspectR17 = rim
OEM code 225/45R17: section 225 mm · aspect 45% · rim 17"

All confirmed configurations

SizePositionWidthAspectRimLoadSpeed
225/45R17 (run-flat)Front / all2254517"89V
235/35R19 (run-flat)Front / all2353519"91W
235/40R18 (run-flat)Front / all2354018"89W