The first 'official' images of the Harley Davidson HD4XX roadster have been leaked, courtesy of a highly placed spy photographer. The new photos reveal some juicy details of the first motorcycle from the Hero MotoCorp and Harley Davidson partnership. This Royal Enfield and Bajaj Triumph rival is likely to feature a 420cc oil-cooled motor and premium hardware. But that's not all, in this video, we will also tell you about another motorcycle based on the HD4XX, that will be sold under the Hero brand. Watch the video to find the exclusive details.