I am selling a complete Shimano GRX 1x12-speed groupset for gravel bikes, purchased in January 2025 and recently removed due to an upgrade to an electronic Di2 system. The groupset is in perfect working order, in excellent aesthetic and mechanical condition, and includes EVERYTHING necessary for assembly (brakes and complete drivetrain).

The kit consists of the following (native Shimano 12-speed mix):

* Hydraulic shift/brake levers: Shimano GRX ST-RX610 12-speed
* Rear derailleur: Shimano GRX RD-RX822 with stabilizer clutch (mechanical top-of-the-line)
* Disc brake calipers: Hydraulic ...