Shimano GRX RD-RX827 SGS 12-speed Di2 Rear Derailleur

Shimano GRX RD-RX827 SGS 12-speed Di2 Rear Derailleur

The Shimano GRX Di2 RD-RX827 1x12-speed rear derailleur features the innovative SHIMANO SHADOW ES technology and comes in a single SGS long cage version. Built for rugged terrain and adventure riding, it ensures precise wireless shifting and exceptional durability.

The wedge-shaped low-profile design reduces snagging on rocks and debris, while the integrated chain stabilizer enhances chain retention. Automatic impact recovery resets the derailleur instantly after a hit, often without the rider even noticing.

Based on Shimano’s proven MTB Di2 technology, the GRX RX827 derailleur incorporates a removable onboard battery, a wide and solid linkage, and a skid-plate protected housing, making it perfect for gravel racers and adventurers alike.

• Fully wireless Di2 shifting for clean cockpit and fast response
• LED status indicator for quick feedback
• Chain tension enhanced via dual spring stabilizing unit
• Compatible with 10–51T SHIMANO 12-speed cassettes

Technical specifications:

• Use: Gravel, Cyclocross
• Group: GRX Di2 RX827
• Model: RD-RX827-SGS
• Mount: Direct attachment
• Gear range: 1x12-speed (10–51T)
• Chain compatibility: 12-speed HG
• Max sprocket: 51T / Min sprocket: 10T
• Cage type: SGS (long)
• Materials: Aluminum, Stainless steel, PA-GF
• Weight: approx. 449 g

Note: Battery BT-DN320 and Charger EC-DN100 are not included and must be purchased separately.