1999 Mazda RX-7 Wheel Backspacing
5.47–6.86 in (10 configs)
Quick specs
- Backspacing
- 5.47–6.86 in (10 configs)
- OEM offset
- ET50 · ET45 · ET60 · ET55
- Wheel size
- Multiple — see configurations
- Bolt pattern
- 5×114.3
- Tire size
- Multiple — see configurations
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 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 |
| 1.3 Turbo (GF-FD3S) · 13B, R, Petrol | 9x16 | 7x18 | ET60 / ET50 | 6.86 in | 235/50R16 / 225/35R18 | 5x114.3 | 67.1 mm | M12 x 1.5 |
| 1.3 Turbo (GF-FD3S) · 13B, R, Petrol | 8.5x16 | 7x18 | ET45 / ET50 | 6.02 in | 245/40R16 / 225/35R18 | 5x114.3 | 67.1 mm | M12 x 1.5 |
| 1.3 Turbo (GF-FD3S) · 13B, R, Petrol | 9x16 | 7x18 | ET60 / ET50 | 6.86 in | 235/40R16 / 225/35R18 | 5x114.3 | 67.1 mm | M12 x 1.5 |
Compare wheel position See wheel offset
Backspacing values above are calculated from OEM wheel width and offset using BS = width/2 + offset_mm/25.4 (same formula as the fitment calculator).
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More specs for the 1999 Mazda RX-7
Backspacing on these pages is calculated from OEM wheel width and offset (width/2 + offset_mm/25.4). Higher backspacing seats the wheel farther inward; lower backspacing moves it outward.