Aru’s Specialized S-Works Tarmac is the similar to his standard issue black and blue Astana bike but stands out due its red and white colours. Aru hails from Sardinia and is especially proud of his roots. He has been nicknamed 'Il Cavaliere dei Quattro Mori - The Knight of the Four Moors'. As a result his custom bike reflects the colours and design of the four Moors flag – the official flag of the autonomous region of Italy.