Introducing GRX RX825 2x12 Di2
SHIMANO marks its debut in the fully wireless drop bar segment with the new 2x12-speed GRX Di2 components. Featuring robust MTB technologies, GRX RX825 delivers performance, durability, and versatility.
A slimmer, stronger evolution of SHIMANO's pioneering chain-stabilizing SHADOW concept ensures performance over rough terrain.
The 12-speed SHIMANO GRX Di2 DUAL CONTROL LEVERS deliver fast, wireless shifting for gravel and mixed-terrain riding. The ergonomic lever features raised hoods, ribbed surface texture, and an anti-slip coating on the brake lever for increased security and control. The hood body is newly optimized for seamless integration with flared handlebars while retaining the gravel-specific third button location. To complete the cockpit, RX825 levers are compatible with three satellite shifter options and feature SHIMANO FRONT SHIFT NEXT functionality to maximize rider customization options.
Wireless connection keeps the cockpit clean and simple with CR1632 batteries having a life of 1.5 - 2 years.
SHIMANO's GRX Di2 12-speed rear derailleur features a built-in wireless connectivity unit and charging port, ensuring fast and reliable shifting for mixed-terrain riding and easy recharging. Integrated SHADOW RD+ technology prevents chain slap and ensures precise shifting even on rough terrain. Thanks to built-in ON/OFF switch, wheel removal is easy too. The RD-RX825 is compatible with 11-34T and 11-36T 12-speed cassettes and supports Full or Semi-Synchronized shift modes, enhancing rider customization.
SHIMANO GRX RX825 Di2 front derailleur delivers quick and precise front shifting even under heavy loads. Designed for a wider, 17T gear range, it utilizes a +2.5 mm chain line for improved tire clearance. The FD-RX825 is compatible with Full or Semi-Synchronized shift modes as well as the new FRONT SHIFT NEXT function for greater rider customization.
The GRX BR-RX820 disc brake caliper brings a new level of control to gravel cycling with enhanced modulation and a quicker initial braking point. And despite its smaller construction, the system is quieter and easier to maintain.
Included in Shimano GRX RX825 12 Speed Di2 Disc Groupset Kit:
- Left Lever ST- RX825 with Rear Disc Brake BR-RX820 Kit 12 Speed
- Right Lever ST-RX825 with Front Disc Brake BR-RX820 Kit 12 Speed
- Rear Derailleur RD-RX825 12 Speed
- Front Derailleur FD-RX825 12 Speed Braze-on
- Di2 Battery BT-DN300 Internal Type
- 900mm Internal Electric Di2 Wire EW-SD300
- 1200mm Internal Electric Di2 Wire EW-SD300
- Charging cable EW-EC300 for RD-R9250/ RD-R8250/ FC-R9200P 1700mm