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The Shimano 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 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.
BENEFIT
Silent and secure rear shifting on rough terrain
FEATURE
Adjustable chain stabilizer prevents chain slap and drops
FEATURE
SHIMANO SHADOW RD+
BENEFIT
Smooth and reliable shifting on mixed surfaces
FEATURE
ON/OFF stabilizer switch matches terrain
BENEFIT
Maximum front chainring difference: 17T
BENEFIT
Top sprocket: Max. 11T/Min. 11T
BENEFIT
Low sprocket: Max. 36T/Min. 34T
BENEFIT
Total capacity: 42T
|
Model No |
|
RD-RX820 |
|
Series |
|
GRX |
|
Rear Speeds |
|
12 |
|
Compatible Chain |
|
HG 12-speed |
|
RD Construction |
|
SHIMANO SHADOW RD+ |
|
Mount |
|
Direct attachment, Direct mount |
|
Cable Adjuster |
|
✔ |
|
Max. Front Difference |
|
17T |
|
Total Capacity |
|
42T |
|
Low Sprocket (Max/Min) |
|
36T / 34T |
|
Top Sprocket (Max/Min) |
|
11T / 11T |
|
Fluoric Coated Link Bushings |
|
4 |
|
Pulley Bearings |
|
Guide & Tension pulleys |
|
Pulley Teeth |
|
11 / 13T |
|
Sunken Pulley Screw |
|
✔ |
|
B-Axle |
|
Hollow axle |
|
Average Weight (g) |
|
270 |
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