The big plus of a Centurion Ironman is the value. They have an excellent frame, in my opinion, suitable for 100 miles or a triathlon. That's what they were designed for, to let a person train and race on the same bike, back in the late 80's when triathlon was starting to really grow. Combine that with excellent wheel sets and components much better than the price range they were in, and you have it.

The Tange 1 frame is really what you're riding, and it's a great all-around frame. I have raced triathlons, from sprint to half-Ironman, on them, and done several centuries on them. I've not encountered a better all-around bike, and a nice match of fork to frame.

My fastest triathlon road leg was on an Ironman, and my most comfortable century was on an Ironman.

The post about comparable wheels and tires is very important. Unless you run the same setup, any comparison is pretty much flawed.

They are light, well-balanced, and very accommodating of setups from 6-sp to 10-sp. The value in the Ironman is in the package; the frame and generally much better components for the money. I think txvintage has it the most accurate.

In my experience, they handle better than all of my aluminum bikes except a Douglas Motive, about the same as my Ti bike (it was a lot lighter, though) and about the same as my SL-tubed Cilo. The SL-tubed Cinelli/Centurion has quicker geometry, and my Pinarello Montello, well, there's really no comparison between that and any of my other bikes; it spanked them all pretty much.

If you want to sell them, and they're in the right size range, well, you know where I am.