someone else is on the case this, a little RC4 based on the 690 duke :

more pictures at :
http://www.mototech.de/index.php?mac...nid=56&page=56If I read correctly the kit to transform your Duke to this is about 4800 euros. details in German :
Das RC4 Kit enthält IMM Carbon Verkleidung incl. Ram-Airsystem, Tank im Rahmenheck, FuĂrastenanlage, Lenker, sowie als Option den Umbau des kompletten Fahrwerks. Das gesamte Kit, kann so montiert werden, ohne ein Orginalteil zu bearbeiten.
translated:
The RC4 kit includes IMM carbon fiber bodywork including ram-air system, fuel tank mounted on the tail section, rear sets, clip ons. Also available, optionally, are complete chassis conversion (suspension). The entire kit can be mounted without modifying the original parts.