2004 Mazda RX-8 Wheel Offset

Quick specs

Wheel size: Multiple — see configurations
Offset: Multiple — see configurations
Backspacing: Multiple — see configurations
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 MT · 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 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, 13B-MSP, R, Petrol	8x19	8x18	ET47 / ET50	5.85 in	225/40R19 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5
1.3i · 1.3L, 13B-MSP, R, Petrol	9x17	8x18	ET55 / ET50	6.67 in	205/35R17 / 225/45R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	7.5x18	7x18	ET55 / ET40	5.92 in	205/45R18 / 205/30R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	8.5x19	7x18	ET52 / ET40	6.30 in	245/40R19 / 205/30R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	7.5x17	7x18	ET45 / ET40	5.52 in	225/45R17 / 205/30R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	8.5x18	7x18	ET50 / ET40	6.22 in	245/40R18 / 205/30R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	8.5x17	7x18	ET60 / ET40	6.61 in	225/55R17 / 205/30R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	8.5x18	7x18	ET55 / ET40	6.42 in	215/45R18 / 205/30R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (ABA-SE3P) · 1.3L, R, Petrol	7.5x19	7x18	ET47 / ET40	5.60 in	235/50R19 / 205/30R18	5x114.3	67.1 mm	M12 x 1.5
1.3i (LA-SE3P) · 1.3L, R, Petrol	8.5x16	8x20	ET45 / ET35	6.02 in	215/65R16 / 215/50R20	5x114.3	67.1 mm	M12 x 1.5
1.3i (LA-SE3P) · 1.3L, R, Petrol	8x16	8x20	ET60 / ET35	6.36 in	205/60R16 / 215/50R20	5x114.3	67.1 mm	M12 x 1.5
1.3i (LA-SE3P) · 1.3L, R, Petrol	7x17	8x20	ET55 / ET35	5.67 in	215/55R17 / 215/50R20	5x114.3	67.1 mm	M12 x 1.5
1.3i (LA-SE3P) · 1.3L, R, Petrol	9x19	8x20	ET50 / ET35	6.47 in	225/45R19 / 215/50R20	5x114.3	67.1 mm	M12 x 1.5
1.3i (LA-SE3P) · 1.3L, R, Petrol	7x18	8x20	ET52 / ET35	5.55 in	245/30R18 / 215/50R20	5x114.3	67.1 mm	M12 x 1.5
1.3i (LA-SE3P) · 1.3L, R, Petrol	8x17	8x20	ET40 / ET35	5.57 in	235/45R17 / 215/50R20	5x114.3	67.1 mm	M12 x 1.5
1.3i (LA-SE3P) · 1.3L, R, Petrol	8x19	8x20	ET57 / ET35	6.24 in	245/30R19 / 215/50R20	5x114.3	67.1 mm	M12 x 1.5

Wheels and hardware

Lug hardware

Wheel locks

Real-World 2004 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:

19-inch — 6 documented builds
18-inch — 3 documented builds

9 documented builds.

Diameter

Staggered · 19×8.5 ET24 / 19×9.5 ET27

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Volk Racing by Rays GTS

Front: 19×8.5 ET24 · 245/35R19
Rear: 19×9.5 ET27 · 255/35R19

Compared with OEM

Compared with the 19×7.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 35.7 mm farther toward fender (more outward poke)
Inner edge 10.3 mm farther from suspension (more inner clearance)
Width +1" vs OEM

View full build on Modified1

Staggered · 19×8.5 ET38 / 19×10.5 ET36

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Works Wheels VS-XX

Front: 19×8.5 ET38 · 235/35R19
Rear: 19×10.5 ET36 · 265/30R19

Compared with OEM

Compared with the 19×7.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 21.7 mm farther toward fender (more outward poke)
Inner edge 3.7 mm closer to suspension (less inner clearance)
Width +1" vs OEM

View full build on Modified1

Staggered · 19×8.5 ET30 / 19×10 ET38

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Linea Corse LC 818

Front: 19×8.5 ET30 · 235/35R19
Rear: 19×10 ET38 · 285/30R19

Compared with OEM

Compared with the 19×7.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 29.7 mm farther toward fender (more outward poke)
Inner edge 4.3 mm farther from suspension (more inner clearance)
Width +1" vs OEM

View full build on Modified1

Staggered · 19×9 ET24 / Rear unknown

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Fabulous Expand Racing

Front: 19×9 ET24 · 245/35R19
Rear: —

Compared with OEM

Compared with the 19×7.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 42 mm farther toward fender (more outward poke)
Inner edge 3.9 mm farther from suspension (more inner clearance)
Width +1.5" vs OEM

View full build on Modified1

Staggered · 18×8.75 ET25 / 18×9.75 ET25

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: XXR 530

Front: 18×8.75 ET25 · 225/45R18
Rear: 18×9.75 ET25 · 245/40R18

Compared with OEM

Compared with the 18×7 ET52 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 49.2 mm farther toward fender (more outward poke)
Inner edge 4.8 mm farther from suspension (more inner clearance)
Width +1.75" vs OEM

View full build on Modified1

Staggered · 19×8 ET38 / Rear unknown

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Advan Model 5

Front: 19×8 ET38 · 245/35R19
Rear: —

Compared with OEM

Compared with the 19×7.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 15.3 mm farther toward fender (more outward poke)
Inner edge 2.7 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

Staggered · 19×8.5 ET38 / 19×10 ET42

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: Advan T5

Front: 19×8.5 ET38
Rear: 19×10 ET42

Compared with OEM

Compared with the 19×7.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 21.7 mm farther toward fender (more outward poke)
Inner edge 3.7 mm closer to suspension (less inner clearance)
Width +1" vs OEM

View full build on Modified1

Staggered · 18×? / Rear unknown

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: TSW Estorils

Front: 18×? · 245/40R18
Rear: —

Compared with OEM

Compared with the 18×7 ET52 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 18×7.5 / Rear unknown

Documented on a 2004 Mazda RX-8 build — observed custom fitment, not a universal fit guarantee.

Wheel: AEZ Xylo

Front: 18×7.5
Rear: —

Compared with OEM

Compared with the 18×7 ET52 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.

19×8.54 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 2004 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.