Complete wheel fitment specifications, compatible wheel sizes, and clearance guide
The 2024 Cadillac CT5 comes equipped with 245/40R19 tires on 8.5-inch wide wheels at a +39mm offset. This luxury sport sedan uses a rear-wheel-drive platform with available AWD. The bolt pattern is 5x114.3 (5x4.5 inches), providing wide aftermarket selection.
Here are the general fitment guidelines for the 2024 Cadillac CT5:
| Wheel Size | Tire Size | Width Range | Offset Range | Notes |
|---|---|---|---|---|
| 18 inches | 235/45R18 | 8.0-9.0" | +35 to +50mm | Comfort-focused |
| 19 inches | 245/40R19 | 8.5-9.5" | +30 to +45mm | Stock size, best balance |
| 20 inches | 255/35R20 | 8.5-10.0" | +25 to +42mm | Sport upgrade |
| 21 inches | 265/30R21 | 9.0-10.5" | +20 to +38mm | Aggressive, pothole risk |
Owners have developed several proven configurations:
The 5x114.3 bolt pattern is shared with numerous Japanese, Korean, and some European sport sedans, opening a massive aftermarket selection.
Cross-compatible vehicles with 5x114.3: Infiniti Q50, Lexus IS, Nissan Maxima, Honda Accord, Kia Stinger. Always verify hub bore and offset.
Offset is the distance from the wheel's mounting face to the centerline. The CT5's stock offset of +39mm positions the wheel within the fender well.
Going more positive: Going more positive (+45mm or higher) tucks the wheel deeper, suited for lowering springs or coilovers without fender contact.
Going more negative: Going more negative (+30mm or lower) delivers a flush look without requiring fender modifications on the CT5.
Safe range for 2024 CT5: +28mm to +45mm for stock-height. Lowered CT5s should stay +35mm or higher.
Stock clearance: Moderate. About 1.2 inches of clearance to the fender at ride height.
What fits without modifications: 255/40R19 or 245/35R20 fit without body modifications on stock suspension.
What requires modification: 275/30R20 or wider may contact fenders during hard cornering. Fender rolling and a mild 1-inch drop help.
Every vehicle varies based on suspension modifications, ride height, and manufacturing tolerances. Use the WillItRub calculator to verify your specific wheel and tire combination before purchase.
Try the CalculatorA: Yes. Same 5x114.3 bolt pattern. The Blackwing 19-inch forged wheels are a direct bolt-on upgrade.
A: Yes. Both describe the same bolt pattern.
A: 70.3mm. Most aftermarket wheels need hub-centric rings.
A: Bolt pattern matches but Q50 uses 66.1mm hub bore while CT5 needs 70.3mm. Q50 wheels will not fit over the CT5 hub.
A: M14x1.5 torqued to 190 Nm (140 lb-ft). Re-torque after 50-100 miles.
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