Originally Posted by Old Fat Guy

There are a few Merckx Corsa frames up on eBay at the moment. The Merckx Corsa frames were built with Columbus SL tubing, the Corsa Extra frames with Columbus SLX tubing. That's the main difference

I would say that either model is deserving of Ultegra/Dura Ace, or Chorus/Record level components.

Be advised that a good specimen will fetch top dollar, but also offer a ride to last a lifetime. I have a couple of Merckx Professional frames, both slightly older than Corsa/Corsa Extras, and with slightly different geometry. I ride them often, and the some of the best handling/comfortable frames I've had the pleasure of riding.

The man didn't put his name on them as a licensing deal, he owned the factory and was deeply involved in the manufacturing process.

He just recently sold the factory, and is retiring to Canada, to be close to his grandchildren, is my understanding.

What size are you looking at? I may have a very special Merckx for sale in a few months.