Originally Posted by
Zosu
Thank you to T-Mar and all who have contributed to this thread. I've got an old Nishiki Sport that my dad bought new decades ago (my mom had a matching one, but it's not in the family anymore). The post I quoted below leads me to believe I have a Giant-made 1977 Sport model.
Serial is G779818
Date code is G777
"Sport" decal is on the top tube near where it meets the headtube
27" wheels (aluminum? no corrosion except on the nipples)
Suntour everything; derailleurs, stem-mounted friction shifters; chainrings (52/40) all have it stamped on
2x5 speeds
And it's got the same paint job, decal lettering color and fonts, etc as the bicycle referred to in the quote below.
Feel free to correct me if I'm off anywhere. I just appreciate being able to find some information!
Welcome to the forums Zosu. Yes, your bicycle was manufactured by Giant in July 1977. Typically the date is format Gmmyy but we have seen some early cases where it is Ymyy, if it was built prior to October. Aluminum rims would be unusual on a Sport of this era. Typically they were chrome plated steel. You may want to check them with a magnet. If they are attracted by a magnet, then they are steel and your Dad just did a good job of keeping them dry.