Shimano GRX 12 speed reviewed: Shimano shows just how good mechanical shifting can be but is it enough?

Shimano GRX 12-speed mechanical - 820 level.

With three new 12-speed drivetrains to choose from, updated brake levers and a wider gear range, Shimano’s latest generation of the gravel-oriented GRX groupset ticks a lot of boxes. But is it enough? 

Launched in late summer 2024, the new GRX makes use of Shimano’s existing mountain bike technology to add an extra cog in the rear, yet maintains its shift cables.