Mazda MX-5 III (NC) Wheel Lug Pattern, Offset, Center Bore & Rim Size Reference

The Mazda MX-5 III (NC), produced from 2005 to 2015, features specific wheel lug patterns essential for proper wheel fitment and safety. This model uses a 5×114.3mm lug pattern, meaning five lug holes spaced on a 114.3mm pitch circle diameter (PCD). Understanding this specification is critical when selecting aftermarket or replacement wheels.\n\nOffset (ET) values for the MX-5 III (NC) typically range between ET35 and ET50, depending on the specific wheel design and model year. Proper offset ensures the wheels sit correctly in the wheel wells, preserving handling and appearance. Additionally, the center bore diameter for this model is 54.1mm, which must be matched or hub-centric rings used for optimal fit.\n\nRim sizes commonly associated with the MX-5 III (NC) vary from 15 to 17 inches in diameter, often with a width between 6 to 7.5 inches. These dimensions influence tire selection and overall vehicle dynamics. Using the correct wheel lug pattern combined with proper offset and center bore guarantees safe and efficient wheel fitment.\n\nRefer to the year-sorted Mazda wheel lug pattern catalog on our site to confirm the exact specifications for your MX-5 III (NC). This resource helps avoid compatibility issues and supports informed upgrades or replacements.

Year
Make / model / trim Year Tire Rim width (in) Rim diam. (in) Bolt pattern Offset ET Bore DIA Mounting
Mazda MX-5 III (NC) 1.82007205/50R166.5165×114.35567.1M12*1,5
Mazda MX-5 III (NC) 1.82006205/50R166.5165×114.35567.1M12*1,5
Mazda MX-5 III (NC) 1.82005205/50R166.5165×114.35567.1M12*1,5

FAQ

What is the Mazda MX-5 III (NC) lug pattern?
The MX-5 III (NC) uses a 5×114.3mm lug pattern (5 lug holes with a 114.3mm pitch circle diameter).
What offset (ET) values suit the Mazda MX-5 III (NC)?
Offset values for this model generally range from ET35 to ET50 depending on the wheel type and year.
What is the center bore size for the MX-5 III (NC) wheels?
The center bore diameter for the Mazda MX-5 III (NC) is 54.1mm.
Tire size calculatorShow

Compare two tire sizes — diameter, speedometer error, and clearance change.

inchmm
Size 1Size 2DiffDiff(%)
Diameter25.0"25.4"0.5"1.89%
Width7.7"8.5"0.8"10.26%
Circumference78.4"79.9"1.5"1.86%
Profile height5.0"4.2"-0.7"-15.08%
Turnover per mile80779314-1.73%
Clearance--+0.2"-
25.0"
7.7"
old tire side
25.5"
8.5"
new tire side
old tire
15"
old rim
5.0"
new tire
17"
new rim
4.2"

Speedometer Error

(First wheel OEM size)

Reading20 mph30 mph40 mph50 mph60 mph70 mph80 mph90 mph
Actual20.430.540.750.961.171.281.491.6