11-09-2022, 08:21 PM
Hi,
After many years of running a Ruby on heavy Firestone 4.50 x 17" rear tyres, I have just changed to 4.00/4.25 Longstones.
The car sits lower at the back, the un-sprung weight is down, and the tyre no longer rubs on the inner wing on roundabouts.
Previously, the speedo was reading spot-on, so perhaps it now reads a bit high? However, the slight change in gearing means that acceleration is a (tiny) bit better.
Presumably, the habit of fitting these larger 4.50 x 17" tyres started when they were all that was available? All four wheels had them when I acquired the car in 1997 - despite the front ones interfering with the steering lock.
With the original size all around, this is much more how a Ruby was meant to be?
Colin
After many years of running a Ruby on heavy Firestone 4.50 x 17" rear tyres, I have just changed to 4.00/4.25 Longstones.
The car sits lower at the back, the un-sprung weight is down, and the tyre no longer rubs on the inner wing on roundabouts.
Previously, the speedo was reading spot-on, so perhaps it now reads a bit high? However, the slight change in gearing means that acceleration is a (tiny) bit better.
Presumably, the habit of fitting these larger 4.50 x 17" tyres started when they were all that was available? All four wheels had them when I acquired the car in 1997 - despite the front ones interfering with the steering lock.
With the original size all around, this is much more how a Ruby was meant to be?
Colin