2011 Mazda RX-8 Wheel Offset

Quick specs

Wheel size: 7.5x16 · 7.5x17 · 8x18 · 8x19
Offset: ET50 · ET47 · ET45
Backspacing: 5.72 in · 5.97 in · 5.85 in · 5.77 in
Bolt pattern: 5×114.3
Center bore: 67.1 mm
Thread: M12×1.5
Tire size: Multiple — see configurations

OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
1.3i AT · 1.3L, R, Petrol	7.5x16	8x18	ET50	5.72 in	225/55R16 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5
1.3i AT · 1.3L, R, Petrol	7.5x17	8x18	ET50	5.72 in	225/50R17 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5
1.3i · 1.3L, R, Petrol	8x19	8x18	ET47 / ET50	5.85 in	225/40R19 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	7.5x16	8x18	ET50	5.72 in	225/55R16 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	7.5x17	8x18	ET50	5.72 in	225/50R17 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	8x19	8x18	ET47 / ET50	5.85 in	225/40R19 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5

Wheels and hardware

Lug hardware

Wheel locks

Real-World 2011 Mazda RX-8 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 — 4 documented builds
19-inch — 3 documented builds
20-inch — 1 documented build

8 documented builds.

Diameter

Staggered · 18×9.5 ET27 / Rear unknown

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Enkei NT03+M

Front: 18×9.5 ET27 · 255/40R18
Rear: —

Compared with OEM

Compared with the 17×7.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 48.4 mm farther toward fender (more outward poke)
Inner edge 2.4 mm closer to suspension (less inner clearance)
Width +2" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 18×9.5 ET22 / Rear unknown

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Varrstoen Es2

Front: 18×9.5 ET22 · 245/40R18
Rear: —

Compared with OEM

Compared with the 17×7.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 53.4 mm farther toward fender (more outward poke)
Inner edge 2.6 mm farther from suspension (more inner clearance)
Width +2" vs OEM
Diameter +1" vs OEM

View full build on Modified1

Staggered · 18×? ET40 / Rear unknown

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Niche Verona - M150

Front: 18×? ET40
Rear: —

Compared with OEM

Compared with the 17×7.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +1" vs OEM

View full build on Modified1

Staggered · 20×? / Rear unknown

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: TSW Mondello

Front: 20×?
Rear: —

Compared with OEM

Compared with the 19×8 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +1" vs OEM

View full build on Modified1

Staggered · 19×8.5 / Rear unknown

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Axis Phin

Front: 19×8.5
Rear: —

Compared with OEM

Compared with the 19×8 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 19×8.5 / 19×9.5

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Volk GT-7

Front: 19×8.5
Rear: 19×9.5

Compared with OEM

Compared with the 19×8 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 18×8.5 / 18×9.5

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: ADR M-sports

Front: 18×8.5
Rear: 18×9.5

Compared with OEM

Compared with the 17×7.5 ET50 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +1" vs OEM

View full build on Modified1

Staggered · 19×? / Rear unknown

Documented on a 2011 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: ADR Cypher

Front: 19×?
Rear: —

Compared with OEM

Compared with the 19×8 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Documented diameter × width pages

Aftermarket wheel sizes with enough documented Modified1 builds for this model year. Evidence pages — not fit guarantees.

18×9.53 builds

Compare your own setup

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

OEM baseline

Open full fitment calculator

More specs for the 2011 Mazda RX-8

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.