2004 Buick Royaum tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 2004 Buick Royaum.

2004 Buick Royaum tire sizes

225/55R16

Bolt pattern

Other years

Fitment tables

Open a trim for its factory package and every alternative size, front and rear.

2004 – 2006 China market 1 trim

255 hp · V6 225/55 R16 1 fitment

GenerationI 2004–2006

Power255 hp

EngineV6, Petrol

Center bore56.6 mm

PCD5x105

ThreadM12 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
225/55 R16	16x6.5 ET39 ~~5x105~~	–	Tires Rims

Reading the table

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
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.