It's not an Ironman, it's a Cilo. I believe the BB on the Cilo was Italian, not sure, but everthing else was pretty standard. Nice frames, ride well from what the owners tell me. I restored a red one with white decals, still a favorite of the owner. He says it's the smoothest bike he has.

There were many color schemes, and I've seen them with Tange 1 and SLX, pretty much the same geometry, with solid red, solid white, and a fade model. The fade model I've seen has Tange 1 like that and was all tricolor 600. The SLX model was 2x6 DA 7400 indexed. Both were excellent bikes and if in my size, would have provoked thoughts of theft.

I think Jetboy's right on. The Cilo I built was an '86, had the older shifter bosses, with DA 2x6 front to rear, and was SLX. I don't think the Tange model missed a step at all, simply ran Shimano 600. Very likely the fade model I saw with all tricolor was an '88.