Was down at the motorcycle super store today for a unrelated reason and while I was there I decided to pick up a front tire for the 1970 A65L(the old one is nine years old and beginning to dry rot). Well, I accidentally picked up a 3.50-19 K70 rather than the 3.25-19 K70 currently on the bike. Had planned to return the tire when I decided to look in the owners manual
to see what size BSA recommended.
To my surprise, the owners manual
has 2 recommended sizes for the front, 3.25-19 ribbed and 3.50-19 K70 while for the rear only 4.00-18 K70. Whats the story here? Were some models shipped with 3.50-19 K70s and some with 3.25-19 ribbed tires? If so, what models came with which? The manual
print date is June 1969 and covers the models A50, A65T, A65L and A65FS.