Today, Shimano released the long-awaited mechanical 12-speed versions of their popular GRX gravel-focused drivetrain. With three 12-speed varieties to choose from (two 1x configurations and one 2x) and a list of desirable accouterments (optional dropper lever, interchangeable derailleur cages, refined wheelsets, updated ergonomics, and more), Shimano is covering a lot of ground in this new generation of gravel components. Josh recently had a chance to click through and pedal the wide range GRX RX820 groupset and, below, details the full product launch along with his first ride review…
