wheel spec

[inov8]

Lets say I was designing a 20" wheel for a car (like a Honda Civic, Acura, etc.). How would I decide the width of the wheel assuming low-profile tires? I am just wondering for a group project if there is a standard that must be followed.

 

[GregLocock]

The easy answer is that you look at the available tires for that tire size, and then find out the recommended rim widths for those tires.

Alternatively you can get hold of the Tire and Rim Association yearbook, which costs about 35 bucks, contact details given in an earlier thread, which has a chart showing the recommended and permitted rim widths for a given tire width and aspect ratio. However, the latest I have is 1995 and it only goes up to 18 inch. There are various other figures given in that book which are required for packaging a wheel and tire (grown profiles and such like) which should also be useful to you.




Cheers

Greg Locock