2003 BMW Z8 Wheel Offset

Quick specs

Wheel size: 8x18
Offset: ET20
Backspacing: 4.79 in
Bolt pattern: 5×120
Center bore: 72.6 mm
Thread: M12×1.5
Tire size: 245/45R18

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Showing matching bolt patterns and offsets up to 30 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

TSW Sebring
18 × 8.5″ · ET +20 · Black
$319.00
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OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
4.9i · S62B50, V8, Petrol	8x18	8x18	ET20	4.79 in	245/45R18	5x120	72.6 mm	M12 x 1.5
4.9i · 4.9L, S62B50, V8, Petrol	8x18	8x18	ET20	4.79 in	245/45R18	5x120	72.6 mm	M12 x 1.5
4.9i (GH-EJ50) · 508S, V8, Petrol	8x18	8x18	ET20	4.79 in	245/45R18	5x120	72.6 mm	M12 x 1.5

Lug hardware

Wheel locks

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OEM: 18×8 ET20 · 245/45R18 · Front · 4.9i · S62B50, V8, Petrol

New width (in)New offset (mm)

Outer: +0 mm
Inner clearance: 0 mm unchanged

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More specs for the 2003 BMW Z8

Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.