Subject: tyre/rims

[Les Singh <Les.Singh@xxxxxxxxx>]

>
>the old rule of thumb was that rim to tyre ratio should be 75-85%. This gives
>appropriate support to the sidewall. Too wide a tyre on any given rim width
>causes the sidewalls to balloon and the tyre to 'wobble' back and forth on
the
>rim under cornering loads, the bottom line is too wide a tyre reduces
steering
>accuracy and feel, in effect the slip angles are affected (adversely)
>pest steering/handling.

(etc .... cut to shorten)
>regards 
>
>chris brown
>
>Les, pauline is yours if you want her, we (the rational majority) certainly
>don't

Chris  - absolutely correct. I fitted, with great difficulty, 225-50 P7s on
6" rims and it wasn't worth the effort. These were for our Alfa 90 so it
wasn't a performance oriented fitment but even around town the squirm from
bulging sidewalls was really noticeable. In a straight line at 130 mph they
were ok. 

Thanks for offering Pauline; I wish we could oblige but its hard enough
putting up with Jenny Shipley, someone who was threatened with assasination
at one stage of her career.

Ciao

Les 

------------------------------