* Stock: 185/60R14, 195/60R15, or 205/50R15
* Max recommended: 225/45R15
2006-2015 (NC)
* Stock: 195/50R16 or 205/45R17
* Max recommended: 225/45R17
2016-Present (ND)
* Stock: 205/45R17 or 215/40R17
* Max recommended: 235/40R17 or 245/40R18
It's important to note that these are just general recommendations. The specific tire size that's best for your Miata will depend on a number of factors, including your driving style, the climate you live in, and the type of wheels you have. If you're not sure what tire size to choose, it's always a good idea to consult with a tire expert.