Want a bigger wheel or wider tire?
This calculator helps determine the proper sizing (Note: always keep the outside diameter as close to stock as possible):
http://www.miata.net/garage/tirecalc.html


How wide can you go?
Here's a table showing what size tires fit on different size wheels:
http://www.yokohamatire.com/utrimwidth.asp


Want to know what the original tire size is on your car?
Check out Tire Racks tire selector:
http://www.tirerack.com/tires/TRSele...akeAndYear.jsp


What do all those numbers mean?
Tire Size 101 - Ever asked yourself what all those numbers are on your tires? Tire Rack explains it:
http://www.tirerack.com/tires/tirete....jsp?techid=46


What is my lug pattern?!
Don't know your bolt pattern? Want to buy wheels and wondering if they will fit? Here's the ultimate list of bolt patterns and lug sizes:
http://adaptitusa.com/referencebook.htm


Wheel Weights
Want to know the weight of your wheels? Look them up here!
http://www.wheelweights.net/



If a link is dead let me know and I'll find another one!