2004 MG XPower SV tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x108 on every 2004 trim.

Tires for the 2004 MG XPower SV

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

225/40R18 front + 265/40R18 rear Best-rated standard on 2 trims

Check price on Amazon · 225/40R18 front Check price on Amazon · 265/40R18 rear
225/35R19 front + 265/35R19 rear Best-rated optional on 1 trim

Check price on Amazon · 225/35R19 front Check price on Amazon · 265/35R19 rear
235/35R19 front + 275/35R19 rear Best-rated optional on 1 trim

Check price on Amazon · 235/35R19 front Check price on Amazon · 275/35R19 rear

TireWheelGuide may earn a commission from purchases made through these links.

Trims sold in 2004: 2
Generation: I
Other years: 2003
2004
2005
2006
2007
2008
All years (2003–2008)

2 trims sold in 2004

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

MG XPower SV I

2003–2008 2 trims

XPower SV 4.6i 306 hp · V8 225/40R18 99W / 265/40R18 101W 2 fitments

Generation: I · 2003–2008
Power: 306 hp
Engine: V8, Petrol
Center bore: 67.1 mm
Bolt pattern: 5x108
Thread: M12 x 1.5

Check price on Amazon · 225/40R18 Check price on Amazon · 265/40R18 Wheels 18x7.5 ET50 · 5x108 · 67.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front225/40R18 99W	Rim 18x7.5 ET50 ~~5x108~~	32 psi
Rear265/40R18 101W	Rim 18x9.5 ET50 ~~5x108~~	29 psi
Front225/35R19 97W	Rim 19x8 ET45 ~~5x108~~	35 psi
Rear265/35R19 99W	Rim 19x9.5 ET50 ~~5x108~~	32 psi

How to read 99W: 99 is the load index (up to 1,709 lb / 775 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET50 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

XPower SV 5.0i 394 hp · V8 225/40R18 99W / 265/40R18 101W 2 fitments

Generation: I · 2003–2008
Power: 394 hp
Engine: V8, Petrol
Center bore: 67.1 mm
Bolt pattern: 5x108
Thread: M12 x 1.5

Check price on Amazon · 225/40R18 Check price on Amazon · 265/40R18 Wheels 18x8 ET45 · 5x108 · 67.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front225/40R18 99W	Rim 18x8 ET45 ~~5x108~~	32 psi
Rear265/40R18 101W	Rim 18x10 ET45 ~~5x108~~	29 psi
Front235/35R19 97W	Rim 19x8 ET45 ~~5x108~~	35 psi
Rear275/35R19 99W	Rim 19x10 ET45 ~~5x108~~	32 psi

How to read 99W: 99 is the load index (up to 1,709 lb / 775 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET45 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.