What makes it special
Shimano GRX RX820 12-Speed Rear Derailleur
Middle cage / Black
$145.00
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Shimano / Bike Derailleurs
Shimano GRX RX820 12-Speed Rear Derailleur
A GRX rear derailleur for enhanced chain security and quieter shifting for gravel riding.
$145.00
In stock today at Ansley
Free pickup at any of our four stores. Questions? We're happy to help.
About this product
The details.
Unstoppable and undroppable
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.
Product details
- Silent and secure rear shifting on rough terrain
- Adjustable chain stabilizer prevents chain slap and drops
- Shimano Shadow RD+ technology
- On/Off stabilizer switch matches terrain
- Maximum front chainring difference: 17T
- Top sprocket: Max. 11T/Min. 11T
- Low sprocket: Max. 36T/Min. 34T
- Total capacity: 42T
The details
Good to know-
Specs4
- Manufacturer part #
- IRDRX820
- Cage
- Middle cage
- Speed
- 12
- Largest cog
- 36t
Complete your setup
Goes well with.
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