Cadillac CT6 wheel and tire sizes

Cadillac CT6 GM Omega II

2.0T (237hp, 233hp), 3.0TT (404hp), 3.6i (335hp), 4.2TT (500hp)

2019, 2020, 2021, 2022

Cadillac CT6 wheel specs and tire sizes (2019 — ….)

  • Bolt pattern (PCD): 5 x 120
  • Center Bore (CB): 66.9
  • Thread size (THD): 14 x 1.5
  • Diameter: 18 — 21
  • Width: 235 — 255
  • Aspect ratio: 35 — 50
  • Smallest — Largest tire size: 235/50R18 — 255/35R21

Cadillac CT6 rims sizes (2019 — ….)

  • Diameter: 18 — 21
  • Width: 8 — 9
  • Offset: 30 — 35

Cadillac CT6 GM Omega I

2.0 PHEV (335hp), 2.0T (265hp), 3.0TT (404hp), 3.6i (335hp)

2016, 2017, 2018

Cadillac CT6 wheel specs and tire sizes (2016 — 2018)

  • Bolt pattern (PCD): 5 x 120
  • Center Bore (CB): 66.9
  • Thread size (THD): 14 x 1.5
  • Diameter: 18 — 21
  • Width: 235 — 255
  • Aspect ratio: 35 — 50
  • Smallest — Largest tire size: 235/50R18 — 255/35R21

Cadillac CT6 rims sizes (2016 — 2018)

  • Diameter: 18 — 21
  • Width: 8 — 9
  • Offset: 30 — 35


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