Turismo Todd

53 minutes ago, Magnet said:

Hello Tod, 

‘Rolling diameter staying the same as is the width’ is incorrect. 

To maintain the rolling diameter ( the outside diameter of the wheel plus the tyre) and reduce the profile, then you must increase the width to ensure the outside diameter remains the same. 

The profile is a % of the tyre width, so changing from 50% to 45% obviously means the tyre width would need to increase from its current 225. 

Kind regards,

Gareth. 

Hi Gareth,

Excuse my ignorance but I thought rolling diameter was the size of the tyre IE 17in?

I'm looking to change from 225 50 17 to 225 45 17.  

17 minutes ago, Trevor said:

Hi Todd....welcome to the Forum

As long as the rolling diameter is the same all round the car then the ABS will be fine.

Beware of making the car feel every bump in the road and pothole damage with lower profiles

Hi Trev, thanks for the reply. 

Appreciate that dropping the profile could potentially reduce ride comfort especially with our roads!!!!! however my previous two cars (none Audi's) had 45's or 35's and both were fine.

From a personal prospective I just don't like the look of the 50's and I'm hoping to improve the look with changing to the 45's, again just my personal choice.

Rolling diameter staying the same as is the width.

Todd..

Currently running with "225 50 17" but was wondering if I could drop the profile size down to "45" without affecting any of the electronics like the ABS sensors for example?

Thanks in advance...