The Shift to 1x Drivetrains in Road Cycling

The cycling industry is witnessing a significant shift towards 1x drivetrains, with new 1x13 systems from Campagnolo and SRAM emerging as viable alternatives to the traditional 2x setups. This transition is driven by engineering advancements that allow 1x systems to provide comparable gearing without the drawbacks associated with front derailleurs.

1x systems offer advantages in aerodynamics and weight, with measurable improvements noted in tests. For instance, a switch from a 2x to a 1x setup can result in a 1.4-watt savings, which, while seemingly small, contributes to overall performance. Additionally, 1x systems simplify gear management, reducing cognitive load during rides.

Despite the benefits, some limitations remain, including a reduced number of gears compared to 2x systems. However, the introduction of 1x13 configurations has addressed some of these concerns, providing sufficient range for road cycling needs. As manufacturers continue to refine 1x technology, the traditional 2x systems may face challenges in keeping pace with evolving engineering solutions.