Staggered · 18×9 ET12 / 18×10 ET12
Documented on a 1997 Mazda RX-7 build — observed custom fitment, not a universal fit guarantee.
Wheel: Rays Engineering Volk Racing GT-C
- Front
- 18×9 ET12 · 225/35R18
- Rear
- 18×10 ET12 · 235/35R18
1997 Mazda RX-7 Wheel Offset
ET50 · ET45
Quick specs
- OEM offset
- ET50 · ET45
- Wheel size
- 8x16 · 8x17 · 8x18
- Backspacing
- 5.97 in · 5.77 in
- Bolt pattern
- 5×114.3
- Center bore
- 67.1 mm
- Tire size
- 225/50R16 · 235/45R17 · 235/40R18
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 1.3 Turbo · 13B, R, Petrol | 8x16 | 8x16 | ET50 | 5.97 in | 225/50R16 | 5x114.3 | 67.1 mm | M12 x 1.5 |
| 1.3 Turbo · 13B, R, Petrol | 8x17 | 8x16 | ET50 | 5.97 in | 235/45R17 / 225/50R16 | 5x114.3 | 67.1 mm | M12 x 1.5 |
| 1.3 Turbo · 13B, R, Petrol | 8x18 | 8x16 | ET45 / ET50 | 5.77 in | 235/40R18 / 225/50R16 | 5x114.3 | 67.1 mm | M12 x 1.5 |
| 1.3 Turbo (E-FD3S) · 13B, R, Petrol | 8x17 | 8x17 | ET50 | 5.97 in | 235/45R17 | 5x114.3 | 67.1 mm | M12 x 1.5 |
| 1.3 Turbo (E-FD3S) · 13B, R, Petrol | 8x18 | 8x17 | ET45 / ET50 | 5.77 in | 235/40R18 / 235/45R17 | 5x114.3 | 67.1 mm | M12 x 1.5 |
| 1.3 Turbo (E-FD3S) · 13B, R, Petrol | 8x16 | 8x17 | ET50 | 5.97 in | 225/50R16 / 235/45R17 | 5x114.3 | 67.1 mm | M12 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.
Wheels and hardware for this vehicle
More on AmazonLug hardware
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White Knight Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Count
M12 x 1.5
Matches M12 x 1.5 thread — confirm wheel seat style
Check price on Amazon
White Knight 3807BK-20AM Black Chrome M12x1.50 Spline Lug Nut, 20 items
M12 x 1.5
Matches M12 x 1.5 thread — confirm wheel seat style
Check price on Amazon
Wheel locks
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MCGARD Chrome Cone Seat M12 x 1.5 Wheel Locks
M12 x 1.5 · lock
Matches M12 x 1.5 — confirm seat style for your wheel
Check price on Amazon
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 1997 Mazda RX-7 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.
More specs for the 1997 Mazda RX-7
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.