What tyre size does a Mazda RX-8 use?

The most common size is 225/45R18. Depending on generation and engine, the Mazda RX-8 uses 3 different sizes including 225/45R18, 225/50R17, 225/55R16.

Where do I find my exact Mazda RX-8 tyre size?

Check the tyre placard in the driver's door jamb or fuel flap, or use the lookup tool on this page to select your generation and engine.

Tyres › Mazda › RX-8

Mazda RX-8 tyre sizes

All factory fitments by generation and engine — 3 sizes across 2 generations.

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Quick answer

The most common tyre size on the Mazda RX-8 is 225/45R18 (overall diameter ≈ 660 mm). Exact fitment depends on generation and engine — full breakdown below.

RX-8 (SE/Facelift) 2008 - 2012 - Coupé (2008–2012)

Engine	Tyre sizes
RX-8 - 205 PS - Benzin - 2616 Hubraum	225/45R18 225/50R17
RX-8 - 231 PS - Benzin - 2616 Hubraum	225/45R18 225/50R17 225/55R16

RX-8 (SE) 2003 - 2009 - Coupé (2003–2009)

Engine	Tyre sizes
RX-8 - 192 PS - Wankel	225/45R18 225/50R17 225/55R16
RX-8 - 231 PS - Wankel	225/45R18 225/50R17 225/55R16

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