I have purchased what I believe to be a 1991ish Specialized HardRock Cruz. It has all 7 speed SunTour XCT components and Araya Wheels. Serial Number is MOK 85678. It has a Direct Drive Off Road Tange CrMo decal.

Is this a 1991 model? Am I to assume that the frame, fork and stays are all Tange straight gauge CrMo? I cannot seem to find an exact match. Found a Specialized catalog online in German that seems to be a close match but the colors listed are white and bright red.

Thanks for any help.