I got my '77 with 5000 adult owned miles on it. The bike was
never ridden off road, only on the street and in camp grounds.
The original ball bearings were terrible, pounded to near uselessness.
This does not speak well of the original bearings, after only 5000 miles.
I put in the "AllBalls". What a difference! Worth every penny.

P.S.  I now have about 4000 miles on the "AllBalls" and they are
still as good as new.

George in New Jersey
1977 CT-90
1976 Goldwing