2005 Cadillac CTS-V tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x115 on every 2005 trim.

Tires for the 2005 Cadillac CTS-V

Sizes most trims come with first. Open your trim below for its exact size.

245/40R19 front + 275/35R19 rear Best-rated standard on 1 trim

Check price on Amazon · 245/40R19 front Check price on Amazon · 275/35R19 rear
245/45R18 Best-rated optional on 1 trim

Check price on Amazon · 245/45R18
245/35R20 front + 285/30R20 rear Best-rated optional on 1 trim

Check price on Amazon · 245/35R20 front Check price on Amazon · 285/30R20 rear

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Trims sold in 2005: 1
Generation: GM Sigma I
Other years: 2004
2005
2006
2007
2009
2010
2011
2012
All years (2004–2019)

1 trim sold in 2005

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Cadillac CTS-V GM Sigma I

2004–2007 1 trim

CTS-V 5.7i 394 hp · 5.7L LS6 V8 245/40R19 93W / 275/35R19 95W 3 fitments

Generation: GM Sigma I · 2004–2007
Power: 394 hp
Engine: 5.7L LS6 V8, Petrol
Center bore: 70.3 mm
Bolt pattern: 6x115
Thread: M12 x 1.5

Check price on Amazon · 245/40R19 Check price on Amazon · 275/35R19 Wheels 19x8.5 ET42 · 6x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/40R19 93W	Rim 19x8.5 ET42 ~~6x115~~	36 psi
Rear275/35R19 95W	Rim 19x9.5 ET56 ~~6x115~~	36 psi
Front245/35R20 92Y	Rim 20x9 ET40 ~~6x115~~	36 psi
Rear285/30R20 94Y	Rim 20x10 ET50 ~~6x115~~	38 psi
245/45R18 94W	Rim 18x8.5 ET42 ~~6x115~~	36 psi

How to read 93W: 93 is the load index (up to 1,433 lb / 650 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET42 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean

Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.