It is out of production now. Last model was in 1991 I believe.
One of the reasons it is so popular with racers is its 5 speed gear box and its sports like frame with dual bars. It was very stable on high speeds and could easily touch 140 KM plus depending on the lunatic (literally and I was one as well) whose riding it. On plane roads, it was unmatchable by any local bike. On the looks front it is still very good looking if it is properly restored.
One more reason for its popularity was its bambastic sound when silencer was removed. It literally is deafening.