For fast reliable shifting during our mixed-terrain riding adventures Shimano brings us the new GRX RD-RX825 12-Speed Di2 Rear Derailleur complete with a built-in wireless connectivity unit and charging port for easy operation and recharging. SHIMANO SHADOW RD+ chain stabilization helps prevent chain slap to allow us to continue to shift accurately as we ride over rough terrain while the switch stabilizer features an ON/OFF switch to match the terrain and ease wheel removal. Compatible with 11-34t and 11-36t 12-speed cassettes this wireless rear derailleur is ready to be added to our dream gravel setup.
Price: $409.99 from Backcountry
| Merchant | Price | |
|---|---|---|
| $409.99 | Visit Store |
The Shimano GRX RX820 12-Speed Rear Derailleur delivers quiet stable shifting as we ride over mixed-terrain on our 12-speed GRX gravel drivetrain. Shimano’s Quiet and Secure technology creates a low-profile design reduces chain slap and improves...
Precise quick-shifting 12-speed road rear derailleurThe SHIMANO 105 12-speed rear derailleur combines the smooth and stable shifting that is a staple of SHIMANO SHADOW RD design with direct mount compatibility and a wider gear range capacity.
Shimano's refinements of the latest Dura-Ace Di2 group impress upon us the brand's need for speed reliability and performance. This is the group where Ultegra receives trickle-down technology from and what we would categorize as top-tier. In particular...