What is the factory spec for the NC Miata factory wheel fastening (5x114.3, 67.1 mm hub, M12x1.5 60-degree lug nuts) on a Mazda Miata NC (2006-2015 US model years)?
Added · Updated
Short answer: Factory specification Reported
Verdict:Factory spec Reported confidence (2 of 3) · 6 sources
Factory specification: NC hubs are 5x114.3 with a 67.1 mm bore and five studs per wheel; lug nuts are M12x1.5 with a 60-degree taper seat.
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 | NC Miata factory wheel fastening (5x114.3, 67.1 mm hub, M12x1.5 60-degree lug nuts) |
|---|---|
| Vehicle | Mazda Miata NC (2006-2015 US model years) |
| Years | 2006-2015 |
| Trim / condition | all |
| Verdict | Factory spec Specification |
| Confidence | Reported 2 of 3 — Stated by one reasonably reputable source (retailer, shop, magazine). Not independently confirmed. |
| Last verified | 2026-10-26 (date the cited sources were last read) |
Details
NC hubs are 5x114.3 with a 67.1 mm bore and five studs per wheel; lug nuts are M12x1.5 with a 60-degree taper seat. The 2006 and 2009 manuals give 88-118 N·m (65-87 ft-lbf) for the lug nuts. Vendor figures of 108 N·m and 85 ft-lb both sit inside that range.
Specs
- bolt pattern: 5x114.3
- center bore mm: 67.1
- lug thread: M12x1.5
- torque nm: 88-118
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
- 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
- Flyin' Miata Evolver 17x8 +48 flow formed wheel (NC) — Reported to fit Fits
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
- 2006 Mazda MX-5 Owner's Manual (Form 8U35-EA-05F, Edition 4 / Print 4, Nov. 2005) — Mazda Motor Corporation (owner's manual) via mazdausa.com (mfr spec; read 2026-10-26; full page read)Lug nut torque 88-118 N·m.
- 2009 Mazda MX-5 Miata Owner's Manual (Form 8Z78-EA-08K, Edition 1 / Print 1, Nov. 2008) — Mazda Motor Corporation (owner's manual) via mazdausa.com (mfr spec; read 2026-10-26; full page read)
- Mazda Miata (NC) Fitment — Grip Theory (wheel maker) (vendor article; read 2026-10-21; full page read)5x114.3, 67.1 mm, conical seat.
- Flyin' Miata hard anodized aluminum lug nut (set of 20, NC) — Flyin' Miata (parts vendor) (vendor article; read 2026-10-26; full page read)M12x1.5 thread, 60-degree taper.
- ARP wheel stud (Miata applications) — Flyin' Miata (parts vendor) (vendor article; read 2026-10-26; full page read)Five studs per wheel on the NC.
- 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)Torque to 85 ft-lb.
Summaries are in our own words. Fitment is not guaranteed — disclaimer.
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