Correction. After some study I realized that the V-Rod fork and triple clamps are on the lowered concept bike. The cafe racer concept has legs from an XR-1200X with the brake bracket cut off the right leg lower casting. The fender looks like a stock XR-1200/V-Rod part and the bracket looks like a shortened XR-1200X fender bracket.
The triple clamps, however, are neither V-Rod nor XR-1200/XR-1200X parts but something unique, which makes me wonder if these are prototype parts for an eventual version of the Street with a male slider fork. Well, one can hope!
Go ahead and google up some photos of that bike, a late model Night Rod Special and the XR-1200, save them to your computer and blow them up real big. You can see that the triple clamps on that concept bike are not like anything on any other Harley product.