Cadillac CT6 wheel and tire sizes

Cadillac CT6 GM Omega II

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

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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
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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
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Cadillac CT6 rims sizes (2016 — 2018)

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

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