I talked to another owner of the same era Super Course and he claimed they had a reputation of "shuddering" at high speed descents, I never experienced that. You could argue that Chicago is flat and no place for steep hill riding, but I then moved to Vancouver, British Columbia and the North Shore, which is all mountains. Deep Cove mountain bike store was within a few blocks of where I lived. Out of this store, one owner developed Kona and the other owner (I think there were three or four owners) developed Rocky Mountain bikes.