Hi T-Mar!
Here's anoher one. I got this bike as a frame with handlebars shifters and brakes. No seatpost or wheels so I don't even know how many gears were on the cassette.
Serial No. N5B1091
Downtube has "Tange No. 1" and "Designed in America, Built in Japan" decals.
Size 50cm C-T w/ 52cm Top tube. 126mm rear spacing.
Top tube says "Ironman". No "Master or "Expert".
Brakes are Shimano 600 sidepulls with the drilled levers (non-aero).
Deraillers and headset are Shimano 600 as are the cranks. The cranks are the ones with "Shimano 600" engraved in the arms in block letters without the small decal they used later. They came with Biopace chainrings (52 X 39)
Metallic red with silver head tube and downtube decals. Nice silver pinstriping around the head and seat lugs.
Does anyone know the geometry of this bike? It's ride is lively but comfortable like a good steel frame should be but if you walk the bike holding the seat and lean it even slightly, the bike wants to turn the front wheel. Much more so than any other bike I've tried. Maybe it's has less trail than most, or a short front-center.
Thanks