What are the implications of recent advancements in gravel bike drivetrains on the long-standing debate surrounding the merits of electronic versus mechanical shifting, particularly in the context of extreme off-pavement terrain and variable weather conditions?
More specifically, do the latest developments in wireless electronic shifting, such as SRAMs eTap AXS and Shimanos Di2, represent a paradigm shift in the way we approach gravel bike drivetrain design, or do the limitations of battery life and reliability in harsh environments still favor mechanical systems?
Furthermore, how do these innovations in gravel bike drivetrains intersect with the trend towards increased versatility and multipurpose functionality, as embodied in the rise of supergravel and monstercross bikes that blur the lines between road, cyclocross, and mountain biking?
Are we witnessing a convergence of technological and design principles from different disciplines, which could potentially redefine the parameters of gravel bike performance and functionality?
What are the potential drawbacks or limitations of these emerging drivetrain technologies, and how might they impact the riding experience and overall bike design in the years to come?