Gazelle carried a similar looking frame around the same time. It was their top end offering 'Skyhawk'.
Example of the XT equipped Skyhawk >> http://link.marktplaats.nl/457133831
You would almost think it is the same. It even has the headtube gusset. There is no straight blade fork however and the U-brake is positioned under the chainstays. The Skyhawk was Gazelle's off the shelf top end offering. Above it sat the individually crafted Champion Mondial ATB.
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