15-inch road setup
- Front and rear
- 15 × 7 inch, ET35 · 205/50 R15
A common Good-Win Racing recommendation for road cars. Confirm that the selected wheel design clears the fitted brakes, especially Sport and Mazdaspeed equipment.
1998–2005 · roadster
Mazda MX-5 Miata NB wheel fitment
The NB retains the NA’s four-stud hub pattern but has different factory wheel packages, including 16-inch Sport and 17-inch Mazdaspeed wheels. Lightweight 15-inch square setups remain common for road and track use.
4x100 bolt pattern · 54.1 mm centre bore · Stock wheels: 14 × 6, 15 × 6, 16 × 6.5, 17 × 7 inch · Stock tyres: 185/60 R14, 195/50 R15, 205/45 R16, 205/40 R17
Updated 2026-10-04 · Medium source confidence. Check your exact trim and market. How we check specs
Quick specs
| Specification | Value |
|---|---|
| Bolt pattern | |
| Stock tyre sizes | |
| Centre bore | 54.1 mm |
| Fastener and thread | Wheel nut, M12x1.5 |
| Tightening torque | Confirm in your handbook |
Stock wheels and tyres
Factory options vary by trim and market. Match your car to the row below and check its tyre placard before using it as a baseline.
| Trim | Axle | Wheel | Tyre |
|---|---|---|---|
| Early base, 14-inch equipment | Front and rear | 14 × 6 inch, ET45 | 185/60 R14 |
| 15-inch alloy package | Front and rear | 15 × 6 inch, ET40 | 195/50 R15 |
| Sport / later 16-inch package | Front and rear | 16 × 6.5 inch, ET40 | 205/45 R16 |
| Mazdaspeed / turbo | Front and rear | 17 × 7 inch, ET40 | 205/40 R17 |
Explained in our guides
Read these before choosing wheels for the MX-5 Miata: they explain the offset, fitment and hub numbers in this guide.
- Wheel offset explained: choosing ET without guessingUnderstand positive and negative wheel offset, calculate inner clearance and outer position, and choose an ET using measurements from your own car.
- Flush, poke and tucked fitment: measure the whole tyreUnderstand flush, poked and tucked wheels, calculate how width and offset change the look, and check clearance beyond a parked side-on photograph.
- Hub-centric vs lug-centric wheels: choosing hub ringsLearn what hub rings do, how to specify their inner and outer diameters, and why centring, wheel seats and vibration need separate checks.
Popular community setups
Starting points for a build. Read the notes with each setup, especially if your car is lowered or has different brakes.
15-inch wider road and track setup
- Front and rear
- 15 × 8 inch, ET25 · 205/50 R15
Good-Win lists 205/50 tyres as fitting NB arches with about 1.2 degrees or more negative camber. A 225-width tyre at this offset requires an arch roll.
Width and offset guidance
Offset range
Check the exact setup
There is no confirmed range for this car yet. Compare a known wheel with your proposed size and measure both sides.
Common width limit
Measure before ordering
A maximum width has not been confirmed. Tyre shape, ride height and alignment all change the available space.
These figures belong to the setups described here. Combining the widest wheel with either end of the offset range does not guarantee a safe fit. For how ET moves the wheel in and out, read wheel offset explained; for how far the tyre can sit out, see flush, poke and tucked fitment.
Clearance notes
- The 2005 Mazda owner manual specifies 88–118 Nm. Community torque tables also show 89–117 Nm; the manufacturer’s range takes precedence and is not reduced to one number.
- Brake clearance is wheel-specific. Do not assume a small-diameter wheel clears the larger Sport or Mazdaspeed brakes solely because the PCD matches.
- Factory equipment varies by country and option package. The stock entries describe the wheel packages rather than asserting that every car with a particular badge has the same wheels.
- Check full steering lock and suspension travel with the car loaded. Match wheel load rating, tyre load and speed ratings, fastener seats and brake clearance.
See it on your car.
Upload a photo and start with a look that suits the MX-5 Miata. Try the wheels, colour and stance before you spend on parts.
An AI preview shows the look. It cannot verify physical fitment.
Run the numbers
These tools start with the Early base, 14-inch equipment front size. Choose your own trim or axle in the calculator if it differs.
Questions
Do NA and NB MX-5s share a bolt pattern?
Yes. Both use 4x100, a 54.1 mm centre bore and M12x1.5 nuts.
What wheels came on the Mazdaspeed MX-5?
17x7 ET40 wheels with 205/40 R17 tyres.
Can I run 15x8 wheels on an NB?
Yes. A documented ET25 setup uses 205/50 R15 tyres with negative camber. Wider 225 tyres require arch work at this offset.
What size tyres does the Mazda MX-5 Miata NB have?
Factory tyre (tire) sizes for the 1998–2005 Mazda MX-5 Miata NB are 185/60 R14, 195/50 R15, 205/45 R16 and 205/40 R17, depending on trim. Your tyre placard shows the size for your car.
What wheel size does the Mazda MX-5 Miata NB use?
Factory wheels are 14 × 6 inch, 15 × 6 inch, 16 × 6.5 inch and 17 × 7 inch, depending on trim. The stock table lists the offset for each.
What is the Mazda MX-5 Miata NB centre bore?
54.1 mm. Aftermarket wheels with a larger bore need hub-centric rings sized to it.
Specs checked against
- Miata.net: original wheel sizes and offsets
- Miata.net: workshop torque specifications
- Eibach: NA/NB wheel spacer and hub specifications
- Flyin’ Miata: NA, NB and ND lug-nut specification
- Mazda: 2005 MX-5 owner manual
- Tire Wheel Guide: 1999 MX-5 specifications
- Miata Turbo: original Mazdaspeed Racing Hart wheel dimensions
- Good-Win Racing: popular NA/NB wheel sizes
- Good-Win Racing: 15x8 ET25 tyre and arch requirements
This guide is a starting point, not a fitment guarantee. Specs can differ by market, trim and previous modifications. Confirm all sizes, clearances and fastener requirements with a qualified wheel and tyre professional before buying or fitting parts.
Related cars
More guides from Mazda or cars with the same bolt pattern. A matching pattern alone does not make a wheel interchangeable.