2011 Cadillac STS Wheel Offset

Quick specs

Wheel size
7.5x17 · 8x18 · 8x19
Offset
ET51 · ET45 · ET50
Backspacing
5.76 in · 6.01 in · 5.77 in · 5.97 in
Bolt pattern
5×115
Center bore
70.3 mm
Thread
M12×1.5
Tire size
235/50R17 · 235/50R18 · 245/40R19 · 235/40R19

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
3.6i · 3.6L, LY7, V6, Petrol7.5x177.5x17ET515.76 in235/50R175x11570.3 mmM12 x 1.5
3.6i · 3.6L, LY7, V6, Petrol7.5x177.5x17ET515.76 in235/50R175x11570.3 mmM12 x 1.5
4.6i · 4.6L, LH2, V8, Petrol7.5x177.5x17ET515.76 in235/50R175x11570.3 mmM12 x 1.5
4.6i · 4.6L, LH2, V8, Petrol8x187.5x17ET516.01 in235/50R18 / 235/50R175x11570.3 mmM12 x 1.5
4.6i · 4.6L, LH2, V8, Petrol8x197.5x17ET50 / ET515.97 in235/40R19 / 235/50R175x11570.3 mmM12 x 1.5
4.6i · 4.6L, LH2, V8, Petrol8x197.5x17ET45 / ET515.77 in245/40R19 / 235/50R175x11570.3 mmM12 x 1.5

Wheels and hardware

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Lug hardware

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  • White Knight Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Count

    M12 x 1.5

    Matches M12 x 1.5 thread — confirm wheel seat style

    Check price on Amazon
  • White Knight 3807BK-20AM Black Chrome M12x1.50 Spline Lug Nut, 20 items

    M12 x 1.5

    Matches M12 x 1.5 thread — confirm wheel seat style

    Check price on Amazon

Wheel locks

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  • MCGARD Chrome Cone Seat M12 x 1.5 Wheel Locks

    M12 x 1.5 · lock

    Matches M12 x 1.5 — confirm seat style for your wheel

    Check price on Amazon
  • Gorilla Automotive Wheel Locks With Washer (M12x1.50)

    M12 x 1.5 · lock

    Matches M12 x 1.5 — confirm seat style for your wheel

    Check price on Amazon

Real-World 2011 Cadillac STS 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.

2011 Cadillac STS custom wheel setup

Staggered · 22×9 / 22×10

Documented on a 2011 Cadillac STS build — observed custom fitment, not a universal fit guarantee.

Wheel: Lexani R6

Front
22×9 · 245/30R22
Rear
22×10 · 275/25R22
Compared with OEM

Compared with the 17×7.5 ET51 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +5" vs OEM

Compare your own setup

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

OEM: 17×7.5 ET51 · 235/50R17 · Front · 3.6i · 3.6L, LY7, V6, Petrol

  • Outer: +0 mm
  • Inner clearance: 0 mm unchanged

Open full fitment calculator

More specs for the 2011 Cadillac STS

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.