For the 1999 Miata, Tire Rack lists the following wheel sizes: 14" (OE), 15" (+1), 16" (+2), 17" (+3), and 18" (+4). I went to a 15" wheel (+1) on my '93 and was very happy with them. Standard equipment for my '04 MazdaSpeed Miata is 17" wheels with 205/40R tires. This was also standard on the '05 MazdaSpeed. The larger the wheel, the lower profile the tire, and, in general, the harsher the ride. Look here.
http://www.tirerack.com/wheels/results.jsp?autoMake=Mazda&autoModel=Miata&autoYear=1999&autoModClar=&package=false
Here's some other sites for tires/wheels.
www.edgeracing.com |
www.tires.com |
www.treadepot.com |
www.onlinetire.com |
www.onlinetires.com |
www.tirefactory.net |
www.tirefactory.com |