WheelOffset

2009 Acura RDX Wheel Offset

ET45 · ET50

Quick specs

OEM offset
ET45 · ET50
Wheel size
7.5x18 · 8x19 · 8x20
Backspacing
5.52 in · 5.97 in
Bolt pattern
5×114.3
Center bore
64.1 mm
Tire size
235/55R18 · 235/50R19 · 245/45R20

OEM configurations

ConfigurationRimOffsetBackspacingTireBolt patternCenter boreThread
2.3i Turbo · K23A, I4, Petrol7.5x18ET455.52 in235/55R185x114.364.1 mmM12 x 1.5
2.3i Turbo · K23A, I4, Petrol8x19ET505.97 in235/50R195x114.364.1 mmM12 x 1.5
2.3i Turbo · K23A, I4, Petrol8x20ET505.97 in245/45R205x114.364.1 mmM12 x 1.5

See how a different wheel would sit See wheel backspacing

What happens if you change the offset?

Compare your own setup

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

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Wheels and hardware for this vehicle

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Lug hardware

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  • Gorilla Automotive 21133BC Small Diameter Acorn Black 5 Lug Kit (12mm x 1.50 Thread Size) - Pack of 20

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

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  • White Knight 1707SBK-20AM Black Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Pack

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

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  • White Knight 1707S-20AM Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Pack

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

    Check price on Amazon

Wheel locks

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  • McGard 24157 Chrome Cone Seat Wheel Locks (M12 x 1.5 Thread Size) - Set of 4

    Confirmed vehicle catalog match. Confirm seat style for your wheel.

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  • Gorilla Automotive Wheel Locks With Washer (M12x1.50)

    M12 x 1.5 · lock

    Matches M12 x 1.5 — confirm seat style for your wheel

    Check price on Amazon

Real-World 2009 Acura RDX 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.

2009 Acura RDX custom wheel setup

Staggered · 18×? / Rear unknown

Documented on a 2009 Acura RDX build — observed custom fitment, not a universal fit guarantee.

Wheel: O.Z. PALLADIO

Front
18×?
Rear
—
Compared with OEM

Compared with the 18×7.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

    View full build on Modified1

    More specs for the 2009 Acura RDX

    OEM offsets are catalog configurations, not an aftermarket “safe ET range.” Matching offset alone does not confirm clearance. Documented custom builds are observed setups only.