has anyone heard of this bike?
 

I just bought a used bike in san francisco that was called a Focus. Judging by the way it looks im guessing it is from the 1980's. I have heard about the current Focus bicycle company but im not sure if these are the same. The fitted with suntour components and Sakae cranks. And the rear dropouts had a faint stamp that read Suntour as well. Can anyone tell me anything about this bike??? Every store i go to say that have never heard of a Focus. Is this a good frame?? Please help me figure this out.