We've seen our fair share of custom bikes that could be classified as works in progress. Some have been cobbled together crudely while waiting patiently for parts to arrive. Others look complete, until you scrutinize them and discover a lack of wiring—or the infamous 'Bluetooth brakes.' Richard 'Mule' Pollock operates on another level. This pristine Harley Sportster street tracker is ready to shine at a show or tear up the streets. But Mule still has a laundry list of mods that he plans to ...