Why don't they race Paris-Roubaix on gravel bikes?

BikeRadar recently published an article posing the question: "Why don't they race Paris-Roubaix on gravel bikes?" This query, while not an announcement or achievement, highlights a recurring topic within cycling circles, particularly as gravel cycling's popularity continues to surge. The article implicitly acknowledges the perceived overlap between the demands of the 'Hell of the North' and the capabilities of modern gravel machines, prompting a discussion on equipment choices for one of cycling's most brutal Monuments.

This question arises from the undeniable evolution of bicycle technology, where gravel bikes have increasingly blurred the lines with endurance road bikes, offering greater tyre clearance, more compliant frames, and robust components. Given Roubaix's notorious cobbled sectors – which punish traditional road setups – the suggestion of gravel bikes isn't entirely without merit. However, the UCI's strict regulations on tyre width and frame design, coupled with the need for aerodynamic efficiency on the long road sections, have historically dictated equipment choices, making a wholesale shift to gravel bikes impractical under current rules.

Ultimately, the question is less about capability and more about compliance. While a gravel bike might survive the pavé with greater comfort, the current rulebook, and the need for speed on tarmac, ensures that the pros will continue to wrestle with their highly-specialised road machines.