Question regarding wheel sizes?

[heshan]

Hi guys,

I've been told over the yrs not to put too large a wheels into the car as it'll affect the axle and the diffs.

But my question is if I keep the total diameter of the wheel+tire same but I just change the wheel from 14" to 16" would it matter? What's the logic behind this? I thought moment of inertia would be based on the weight and radius of the wheel+tire height and not just the wheel height.

Let me know.

thanks guys.

[fax0815]

I don´t think the moment of interia is the problem with bigger wheels. Its the overall gearing.
If you change to bigger wheels with a low profile tyres, while your outside diameter stays the same you won´t change your gearing, same stress on drivetrain than before.
Therefore if you change from, lets say 185/60/R14 to 195/45/15 you will reduce stress and the car will get handle better, during the low profile.

BTW low profile tyres can look very stupid, if your car is not low enough...

[Saber]

fax0815 Wrote:BTW low profile tyres can look very stupid, if your car is not low enough...

It'll always look stupid if it's not low enough.