I just acquired a Shogun which is a 1979 Model; Ser Num S9D3040. The serial number was located on the non-drive side of the seat tube just above the BB shell rather than on the BB shell. It is equipped with Shimano 600 Arabesque derailleurs, shifters, crank, and brake levers. The brakes are Shimano Tourney. The crankset is a double (44/52 teeth) and 165mm arms. The cassette is a Shimano Uniglide 6 speed, 13-21 teeth. The seatpost is a Sakae/Ringyo 26.8mm. The hubs are shimano with 36-hole Araya (700c) rims. The pedals are Kyokuto Pro Vic II. The saddle is Kashimax Sports made by Kashima Saddle Mfg Co Ltd of Osaka, Japan. The handlebar is a Road Champion made by Alps Industrial Co Ltd of Japan.