Originally Posted by
RobbieTunes
...The Comp TA was, indeed, the predecessor of the Ironman. As far as I can tell, the switch from Tange 2 to Tange 1 was about the only significant change. I see someone swapped in a tricolor RD, and that is certainly an interesting stem. The Comp TA was a smooth frame, one of the first bikes I had that had a real nice glide to it.
As you can see, the similarities to the '85 Ironman are obvious.
According to the specs, the change to the 1985 Ironman also resulted in revised geometry with steeper angles and an increase in fork rake and wheelbase.
That pictured Ironman looks like the fork may be bent. The tire looks too close to the downtube.