Shimano GRX RX820 12 Spd Rear Derailleur
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Product details
| Management number | 236454718 | Release Date | 2026/07/09 | List Price | US$50.75 | Model Number | 236454718 | ||
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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
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