
Staggered · 21×9 / 21×10.5
Documented on a 2012 Cadillac CTS-V build — observed custom fitment, not a universal fit guarantee.
Wheel: Modulare M15
- Front
- 21×9
- Rear
- 21×10.5
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 6.2i · 6.2L, LSA, V8, Petrol | 9x19 | 9x19 | ET51 | 6.51 in | 255/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 6.2i · 6.2L, LSA, V8, Petrol | 9x20 | 9x19 | ET50 / ET51 | 6.47 in | 255/35R20 / 255/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |

White Knight 1707S-20AM Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Pack
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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DYNOFIT 14mmx1.5 Wheel Lug Nuts, 32x Black M14x1.5 Lug Nut,Conical/Cone Bulge Seat, Closed End Long Extended XL Spline with 1 Socket Key Fits 8 Lug Aftermarket Wheels
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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Gorilla Automotive 21133HT Small Diameter Acorn Chrome 5 Lug Kit (12mm x 1.50 Thread Size) Pack Of 20
Confirmed vehicle catalog match. Confirm seat type for your wheel.
Check price on AmazonObserved aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.
Among builds in our database for this model year:
1 documented build.

Documented on a 2012 Cadillac CTS-V build — observed custom fitment, not a universal fit guarantee.
Wheel: Modulare M15
See how a different width or offset sits versus an OEM configuration for this year.
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.