Originally Posted by RobbieTunes

There was a magazine article somewhere in the late 80's that featured a red/white Panasonic DX 5000, I think, and went on to list the close similarities or matches of some Japanese frames built at the Panasonic National plant. That list included Panasonics, Centurions, and a couple of others. I don't recall it being more specific.

I've had my hands on dozens and dozens of Centurion models, and I go by feel.

There is little difference between the 84 Lotus Classique and the slightly earlier Centurion Semi Pro. The Classique was by Tsunoda, doubt if the Centurion was.

There is almost no difference between some of the Panasonic models and some Centurions, notably the Prestige-framed DX6000 and the Prestige by Centurion, in 1989. However, the 1985 Prestige seemed to be a different bird altogether.

I've not found a Panasonic that I can say is identical to an Ironman, but the DX5000 and the Lemans RS of later years are very, very similar.

The paint layers and quality are also very similar between the Panasonics and the Centurions, and I'd also toss in some of those great Japanese Schwinns of the same era. With the paint blasted off and built up, many are hard to tell apart.

Dave Scott's book says the Ironman was spec'd, in part, with his input. No clue. I've not found another Japanese bike that rides "just like" one, but tires, wheels, etc all make a difference. I have ridden excellent Japanese-made bikes. I'm just so used to an Ironman ride, my mind is not going to let me admit there may be no better, worse, or similar frame.

Humans are as humans do. Let's ride 'em all.