Casas painted Ramon Casas and Pere Romeu on a Tandem in 1897 specifically for the interior of Els Quatre Gats, a bar that was at the center of the Modernisme art movement in Barcelona.

[1] It depicts Casas and Pere Romeu, one of the promoters of Els Quatre Gats, on a tandem bicycle against the Barcelona skyline.

[2] Although painted on canvas, the composition has the graphic quality of a huge poster with its bold drawing and simplified forms, reflecting the fact that the artist was a skilled poster designer and illustrator.

[3] The original inscription in Catalan on the right side of the painting, which was later cut off, read "to ride a bicycle, you can't go with your back straight.

"[1] The message described the attitude of the bar founders (two of whom are depicted here), that in order to make progress, you must break with tradition, as was done at Els Quatre Gats.