mx5

[fruitsalad]

at the moment i have 15" alloys on my mx5 but would like to have 17" put on will this make any difference to the handling of the car? tia

[buildersmate]

Have you considered what it would do to your insurance premium?

[tonyav]

if you fit 17'' wheels on your car i presume you will probably fit pretty low profile tyres as well, this will make the ride harsher than what you have probably used to.

[fruitsalad]

buildersmate i dont pay a great deal to insure my car anyhow been driving a long time so that wont worry me to much, yes tonyav think i will have to have low profile tyres.

[paddiez]

And your speedo will read incorrectly too....

[fruitsalad]

will it read over or under paddiez? hopefully they will explain all this to me when i purchase them and have them fitted.

[ChuckFickens]

put the details of both current and the new tyres in here..

http://www.miata.net/garage/tirecalc.html

it will tell you how much it will effect the speedo in both speed and percentage.

if it's too much different it will effect other things too, a significantly larger rolling circumference will put a lot more load on the brakes and you may have problems with clearance in the arches.