Shimano GRX RX820 12 Spd Rear Derailleur

The Shimano GRX RD-RX820 rear derailleur is designed with chain security and quiet, stable shifting in mind for gravel riding. The GRX RD-RX820 is compatible with 11-34T and 11-36T 12-speed cassettes and provides a wide gear range so you can find your optimal cadence on every terrain and surface type. The GRX RD-RX820 features an integrated chain stabilizer that reduces chain slap and prevents chain drops on rough terrain and can be turned off with the on/off switch when riding on smooth surfaces. Designed for smooth and reliable shifting, GRX 12-speed is ready for any ride on any surface.

Note: Cage is not interchangeable with RX822-GS and RX822-SGS derailleur cages.

Features:

• Shadow Plus chain stabilizer (with on/off switch) prevents chain drops
• Reliable and smooth shifting on mixed surfaces
• Secure and silent shifting on rough terrain

Specifications:

• Speed: 12 Speed
• Shifter Compatibility: Shimano Road (12 Speed)
• Shift Mechanism: Cable Actuated
• Max. Tooth: 36T
• Min. Tooth: 11T
• Chain Wrap Capacity: 42T
• Cage Material: Aluminum
• Chain Retention: Shadow Plus
• Color: Black
• Weight: 270g