You are looking at a Norley 2, a Cafe Racer built from the ground up using a Norton looking frame in which was cradled a Sportster engine and transmission. The frame, swingarm with bearings and spindle plus rear engine mounts is provided by UK manufacturer JW Motorcycles and offered in the US as a kit by Santiago Chopper.
Headstock is set with a 26-degree rake and machined to accept Sportster yokes using taper bearings. Gas tank and oil tank are formed out of aluminum. The standard belt drive can be used, or there are sprocket conversions available. A Norley assembled here in the US starts at $16,996.
Tech sheet of this one. Front end: ducati 1000 Sport. Triple tree: Ducati modified. Brakes: Brembo. Engine: Sportster 1200, year 2003. Exhaust: Supertrapp. Hand controls: Beringer. Foot controls: Storz. Paint by Craig Paint in Tampa. And if you want to acquire it, the Norley 2 will be auctioned at the Next Mecum Auction in Indianapolis in May with all proceeds to go to a foundation helping kids with cancer. More info at Norley Cafe Racer.