![Modified Shimano GRX RD-RX812 1x11 spd rear derailleur to supports 2x11 spd w/ 11-46T cassette. - YouTube Modified Shimano GRX RD-RX812 1x11 spd rear derailleur to supports 2x11 spd w/ 11-46T cassette. - YouTube](https://i.ytimg.com/vi/7kUxmkuJWNg/maxresdefault.jpg)
Modified Shimano GRX RD-RX812 1x11 spd rear derailleur to supports 2x11 spd w/ 11-46T cassette. - YouTube
![Amazon.com: Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x : Everything Else Amazon.com: Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x : Everything Else](https://m.media-amazon.com/images/I/51tbdv3lMEL._AC_SY1000_.jpg)
Amazon.com: Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x : Everything Else
![Shimano GRX RX810 & RX812 Hydraulic Flat Mount STI 1 Ring Crankset Wide Range Casette Groupset | Texas Cyclesport Shimano GRX RX810 & RX812 Hydraulic Flat Mount STI 1 Ring Crankset Wide Range Casette Groupset | Texas Cyclesport](https://cdn11.bigcommerce.com/s-kvyj4/images/stencil/1280x1280/products/5120/22735/Shimano-GRX-Group-1-ring__4__63667.1594141934.jpg?c=2)
Shimano GRX RX810 & RX812 Hydraulic Flat Mount STI 1 Ring Crankset Wide Range Casette Groupset | Texas Cyclesport
![Shimano's gravel-oriented GRX mechanical rear derailleur come in both 1x ( RX812) and 2x (RX810) configurations. We tried the RX812 in a 2x configuration with success. © A. Yee / Cyclocross Magazine - Shimano's gravel-oriented GRX mechanical rear derailleur come in both 1x ( RX812) and 2x (RX810) configurations. We tried the RX812 in a 2x configuration with success. © A. Yee / Cyclocross Magazine -](https://www.cxmagazine.com/wp-content/uploads/2019/10/shimano-grx-gravel-drivetrain-components-img_9704-cxmagazine-ay_2-750x494.jpg)
Shimano's gravel-oriented GRX mechanical rear derailleur come in both 1x ( RX812) and 2x (RX810) configurations. We tried the RX812 in a 2x configuration with success. © A. Yee / Cyclocross Magazine -
![grx 812 rear derailleur All products are discounted, Cheaper Than Retail Price, Free Delivery & Returns OFF 67% grx 812 rear derailleur All products are discounted, Cheaper Than Retail Price, Free Delivery & Returns OFF 67%](https://r2-bike.com/media/image/product/166411/lg/shimano-grx-rear-derailleur-rd-rx812-shadow-1x11-speed~2.jpg)