Shimano GRX RD-RX820 12-Speed Rear Derailleur
| Brand | Shimano |
|---|---|
| Colour | Grey |
The RD-RX820 is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The Shimano GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.
Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world.
Technology
Shimano Shadow RD+
Intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur doesn't hit the chain stay in rough riding conditions.
- Less distraction quiet drive train
- Rear derailleur stabilizer reduces chain slap
- Simple solution for chain drop
- Lighter and more efficient than roller type chain device
Features
- Low profile Shadow Plus design 12-speed rear derailleur for fast and precise shifting performance
- Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting
- High tolerance cold forged aluminium link plates and body construction is extremely light and durable
- Compatible with 12-speed Hyperglide+ chains
- Wide gear ratio compatible up to 11-36T
- For use with double chainset
