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Shimano GRX RD-RX812 11-Speed Rear Derailleur
IRDRX812
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Shimano GRX RD-RX812 11-Speed Rear Derailleur
The Shimano GRX RD-RX812 11-Speed Rear Derailleur is a high-performance component designed specifically for gravel and adventure riding. Here are its key features:
Integrated Chain Stabilizer
The derailleur features an integrated chain stabilizer mechanism, which reduces chain slap and provides a quieter experience while riding over rough terrain. This mechanism also enhances shifting security and precision, ensuring smooth gear changes even on mixed surfaces.
ON/OFF Switch
For rides on smoother surfaces, the derailleur includes an ON/OFF switch for the chain tensioner. This feature allows riders to adjust the tension of the chain according to the terrain, providing optimal performance and minimizing unnecessary noise and friction.
Compatibility
The RD-RX812 rear derailleur is compatible with 11-speed drivetrains and is specifically designed for use with Shimano GRX groupsets. It is compatible with mountain bike cassettes with a maximum low sprocket size of 42T, making it suitable for tackling steep climbs and challenging off-road terrain.
Durability
Built to withstand the demands of off-road riding, the derailleur is constructed from durable materials and features a robust design that can handle rough conditions and heavy use.
Smooth Shifting
The derailleur's design incorporates Shimano's proven shifting technology, ensuring smooth and precise gear changes even under load. This allows riders to maintain momentum and control, especially when navigating technical terrain.
Reliability
Shimano is known for producing high-quality components that offer reliability and performance. The GRX RD-RX812 rear derailleur is no exception, providing consistent performance over long rides and in various weather conditions.
Overall, the Shimano GRX RD-RX812 11-Speed Rear Derailleur is a versatile and reliable component designed to meet the demands of gravel and adventure riding. With its integrated chain stabilizer, ON/OFF switch, and compatibility with wide-range cassettes, it offers smooth shifting and enhanced performance on mixed terrain.
Features
Features of Shimano GRX RD-RX812 11-Speed Rear Derailleur
- Silent and uninterrupted rear shifting on rough terrain
-
Adjustable chain stabilizer prevents chain slapping and drops SHIMANO SHADOW RD+
- Smooth and reliable mixed surface shifting
- Switch stabilizer ON/OFF to match the terrain
- Gravel-tuned clutch tension
- Compatible with current road DUAL CONTROL LEVER
Specifications
Specifications of Shimano GRX RD-RX812 11-Speed Rear Derailleur
| Model No. | RD-RX812 |
| Series | GRX 11-speed |
| Color | Black |
|
Average weight |
267 |
|
Rear speeds |
11 |
|
Compatible chain |
LINKGLIDE, HG 11-speed |
|
Total capacity |
31T |
|
Low sprocket|Max. |
42T |
|
Low sprocket|Min. |
40T |
|
Top sprocket|Max. |
11T |
|
Top sprocket|Min. |
11T |
|
Fluoric coated link bushings |
4 |
|
Pulley|Teeth |
11T |
Technology
Technology of Shimano GRX RD-RX812 11-Speed Rear Derailleur
Shimano Shadow RD
Shadow Plus rear derailleurs are just as low-profile as Shimano's Shadow rear derailleurs. In addition, a stabilizer with on/off switch is used to reduce chain slap and thus counteract chain drop. At the same time, this results in a quieter drive. Weight is also saved compared to other chain restraint devices.