<VV>Tires

[Padgett]

>ER-70/14 if I recall correctly.  (For
>those of you who aren't familiar with the letter tire sizes, they
>were introduced in the late 60s and disappeared sometime around 1970 or so.)

Actually "letter" sizes continued well into the 1980s before being replaced 
and were very analogous to the P-metric (which is different from pure 
metric) sizes. A-175, C-185, E-195, F-205, G-215, H-225, L-235 etc. and 
aspect ratios have not changed (yes, Virginia, there were B , D, and other 
sizes, just rarely seen). These were much easier to understand than the 
previous sizing where a 7.50 might be smaller than a 7.35  (last two digits 
were more aspect ratio related).

There is and was also considerable difference in the same size between 
manufacturers such that an F70x14 from one manufacturer might have a larger 
contact patch than another's G70x14. Is somewhat better today but I am 
still more interested in section width, tread width and pattern, and 
overall diameter than the quoted size.

Padgett