Will Aftermarket 17x9 wheel at +45 with 245/40R17 tire (NC) fit a Mazda Miata NC (2006-2015 US model years)?
Added · Updated
Short answer: Unclear Limited
Verdict:Unclear Limited confidence (1 of 3) · 2 sources
Unclear: Sources disagree.
Safety-critical part. This claim comes from community or vendor sources, not the vehicle or part manufacturer, so its confidence is capped at "Reported". Have the work done or checked by a qualified professional and confirm part numbers with the manufacturer.
| Part | Aftermarket 17x9 wheel at +45 with 245/40R17 tire (NC) |
|---|---|
| Vehicle | Mazda Miata NC (2006-2015 US model years) |
| Years | 2006-2015 |
| Trim / condition | unclear: may need fender lip roll |
| Verdict | Unclear Unclear — details missing |
| Confidence | Limited 1 of 3 — Forum, Reddit or anecdotal report, or ambiguous/partial detail. Treat as a lead to research. |
| Last verified | 2026-10-26 (date the cited sources were last read) |
Details
Sources disagree. A wheel maker calls 17x9 +45 with 245/40R17 the ideal NC setup with no mention of fender work; a vendor says +45 wheels usually need a lip roll (or more than -2.0 degrees camber) even for 235/40, and wider race tires need lips rolled flat.
Specs
- bolt pattern: 5x114.3
- size: 17x9
- offset mm: 45
- tire: 245/40R17
Other wheels fitment for the NC
- OEM NC Miata 16x6.5 alloy wheel with P205/50R16 (2006 Club Spec / MX-5 / Touring; 2009 SV / Sport) — Specification Factory spec
- OEM NC Miata 17x7 alloy wheel with P205/45R17 (2006 Sport / Grand Touring; 2009 Touring / Grand Touring) — Unclear — details missing Unclear
- NC Miata factory wheel fastening (5x114.3, 67.1 mm hub, M12x1.5 60-degree lug nuts) — Specification Factory spec
- ND Miata (2016+) factory wheels (4x100, 16x6.5 or 17x7) — Does not fit Doesn't fit
- NB factory wheels (4x100) — Does not fit Doesn't fit
- OEM NA wheel (14x5.5 or 15x6, +45) — Does not fit Doesn't fit
More for this car
- All Mazda Miata NC (2006-2015 US model years) fitment answers · NC common problems
- Newsletter archive: past issues with every new and corrected entry
Sources
- Mazda Miata (NC) Fitment — Grip Theory (wheel maker) (vendor article; read 2026-10-21; full page read)17x9 ET45 with 245/40R17 recommended.
- Miata MX5-NC 2006-2015 Wheels (fitment notes) — Wayback capture 2026-03-04 — Good-Win Racing (parts vendor), via the Internet Archive (vendor article; read 2026-10-26; full page read)45 mm offset usually needs a lip roll for 235/40 or wider.
Summaries are in our own words. Fitment is not guaranteed — disclaimer.
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