2005 Scion tC Wheel Offset

Quick specs

Wheel size: 7x17 · 6.5x16 · 7.5x18
Offset: ET45 · ET42
Backspacing: 5.27 in · 5.02 in · 5.40 in
Bolt pattern: 5×100
Center bore: 54.1 mm
Thread: M12×1.5
Tire size: 215/45R17 · 205/55R16 · 225/40R18

Explore wheels at Tire Rack

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

Configuration

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OEM configurations

Configuration	Rim	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
2.4i · 2.4L, 2AZ-FE, I4, Petrol	7x17	ET45	5.27 in	215/45R17	5x100	54.1 mm	M12 x 1.5
2.4i · 2.4L, 2AZ-FE, I4, Petrol	6.5x16	ET45	5.02 in	205/55R16	5x100	54.1 mm	M12 x 1.5
2.4i · 2.4L, 2AZ-FE, I4, Petrol	7.5x18	ET42	5.40 in	225/40R18	5x100	54.1 mm	M12 x 1.5

Lug hardware

Wheel locks

Real-World 2005 Scion tC Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

18-inch — 1 documented build

1 documented build.

Staggered · 18×9.5 ET35 / 18×9.5 ET15

Documented on a 2005 Scion tC build — observed custom fitment, not a universal fit guarantee.

Wheel: Rota DPTs

Front: 18×9.5 ET35 · 215/35R18
Rear: 18×9.5 ET15

Compared with OEM

Compared with the 18×7.5 ET42 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 32.4 mm farther toward fender (more outward poke)
Inner edge 18.4 mm closer to suspension (less inner clearance)
Width +2" vs OEM

View full build on Modified1

Compare your own setup

See how a different width or offset sits versus an OEM configuration for this year.

OEM baseline

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More specs for the 2005 Scion tC

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.