Dickie Roberts. . i/ l frat: A little Pii. i. rst vim‘ -an littles, oii' .. Why can't a bike stand up on its own? 'Cuz it's two-tired! Dickie Roberts i/ l frat: A little Pii i rst vim‘ -an littles oii' Why can't a bike stand up on its own? 'Cuz it's two-tired!