2005 Pontiac Montana tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 2005 trim.

Tires for the 2005 Pontiac Montana

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

205/70R15 Best-rated standard on 2 trims

Check price on Amazon · 205/70R15
215/70R15 Best-rated optional on 2 trims

Check price on Amazon · 215/70R15
225/60R16 Best-rated optional on 2 trims

Check price on Amazon · 225/60R16

Also listed: 225/55R17 235/55R17 245/45R18

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Trims sold in 2005: 2
Generation: GMT201
Other years: 2001
2002
2003
2004
2005
2006
2007
2008
All years (1997–2009)

2 trims sold in 2005

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Pontiac Montana GMT201

2005–2009 2 trims

Montana 3.4i +1 variant 185 hp · V6 205/70R15 97S 6 fitments

Same tires and wheels on: 3.5i

Generation: GMT201 · 2005–2009
Power: 185 hp
Engine: V6, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 205/70R15 Wheels 15x6 ET52 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
205/70R15 97S	Rim 15x6 ET52 5x115	33 psi
215/70R15 97S	Rim 15x6 ET52 5x115	33 psi
225/60R16 98S	Rim 16x6.5 ET52 5x115	35 psi
225/55R17 97H	Rim 17x7 ET50 5x115	35 psi
235/55R17 97H	Rim 17x7.5 ET50 5x115	35 psi
245/45R18 95V	Rim 18x8 ET45 5x115	36 psi

How to read 97S: 97 is the load index (up to 1,609 lb / 730 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET52 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

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.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.