Richard Pollock has been messing around with motorcycles since 1969, and as the owner of Mule Motorcycles , is renowned for his street trackers. One of Pollock’s most famous creations is the Sportster-engined motorbike shown above: known as the ‘ Madonna bike ‘, it was ordered by a photographer who’d just shot Ms Ciccone for Vanity Fair . The photographer’s favorite medium was black and white, so the entire bike had to be monochrome. By the time Pollock had worked his magic, the only colored