2016 Cadillac CT6 Wheel Offset

Quick specs

Wheel size
8x18 · 8.5x20 · 8.5x19 · 9x21
Offset
ET35 · ET33 · ET30
Backspacing
5.38 in · 5.55 in · 5.68 in
Bolt pattern
5×120
Center bore
66.9 mm
Thread
M14×1.5
Tire size
235/50R18 · 245/40R20 · 245/45R19 · 255/35R21

Explore wheels at Tire Rack

Showing matching bolt patterns and offsets up to 30 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
2.0T · 2.0L, B20NHT, I4, Petrol8x188x18ET355.38 in235/50R185x12066.9 mmM14 x 1.5
2.0T · 2.0L, B20NHT, I4, Petrol8.5x208x18ET33 / ET355.55 in245/40R20 / 235/50R185x12066.9 mmM14 x 1.5
3.0T · 3.0L, LGW, V6, Petrol8.5x208.5x19ET335.55 in245/40R20 / 245/45R195x12066.9 mmM14 x 1.5
3.0T · 3.0L, LGW, V6, Petrol9x218.5x19ET30 / ET335.68 in255/35R21 / 245/45R195x12066.9 mmM14 x 1.5
3.6i · 3.6L, LGX, V6, Petrol8.5x208.5x19ET335.55 in245/40R20 / 245/45R195x12066.9 mmM14 x 1.5
3.6i · 3.6L, LGX, V6, Petrol9x218.5x19ET30 / ET335.68 in255/35R21 / 245/45R195x12066.9 mmM14 x 1.5

Lug hardware

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Wheel locks

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Real-World 2016 Cadillac CT6 Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

  • 22-inch — 1 documented build

1 documented build.

2016 Cadillac CT6 custom wheel setup

Staggered · 22×? / Rear unknown

Documented on a 2016 Cadillac CT6 build — observed custom fitment, not a universal fit guarantee.

Wheel: Savini BM13

Front
22×?
Rear
—
Compared with OEM

Compared with the 21×9 ET30 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +1" vs OEM

Compare your own setup

See how a different width or offset sits versus an OEM configuration for this year.

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More specs for the 2016 Cadillac CT6

Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.