Honouring the legacy of their late parents Jean-Guibole Duguidon and Marcelle de la Virgule-Bien-Plaçée, sisters Ernestine and Gigote are taking advantage of their expeditions on wheels to reflect on this question. The Tour de France, Paris-Roubaix, the ascent of the Galibier and the descent of the Tourmalet are all opportunities to combine high-flying cycling techniques with acrobatic combinations of ideas !