![Shimano 105 5800 ST-5800 RIGHT REAR 11 Speed STI Shifter, EXC 9/10 – EJRecyclery - Cycling New & Used Shimano 105 5800 ST-5800 RIGHT REAR 11 Speed STI Shifter, EXC 9/10 – EJRecyclery - Cycling New & Used](https://ejrecyclery.com/cdn/shop/files/capture000272_0e726578-b641-45c9-90ef-3f00f37bfd96_grande.jpg?v=1691333114)
Shimano 105 5800 ST-5800 RIGHT REAR 11 Speed STI Shifter, EXC 9/10 – EJRecyclery - Cycling New & Used
![Can I pair Shimano 105 ST-5800 2x11 Speed shifters with a GRX RD-RX812 11 Speed rear derailleur? Haven't heard anything on r/bikewrench so I thought I would post here : r/xbiking Can I pair Shimano 105 ST-5800 2x11 Speed shifters with a GRX RD-RX812 11 Speed rear derailleur? Haven't heard anything on r/bikewrench so I thought I would post here : r/xbiking](https://external-preview.redd.it/hvov3zLL-t7mkamtnP2kDhACrcGvhe5qHDsPKRXhEzQ.jpg?width=640&crop=smart&auto=webp&s=43c055a27652ca8875d3a17683161eccda0b1d65)
Can I pair Shimano 105 ST-5800 2x11 Speed shifters with a GRX RD-RX812 11 Speed rear derailleur? Haven't heard anything on r/bikewrench so I thought I would post here : r/xbiking
![First Look: New Shimano 105 11-Speed Group, Plus New Mechanical + Hydraulic Road Disc Brakes! - Bikerumor First Look: New Shimano 105 11-Speed Group, Plus New Mechanical + Hydraulic Road Disc Brakes! - Bikerumor](https://bikerumor.com/wp-content/uploads/2014/03/ST-5800_R_S_01.jpg)
First Look: New Shimano 105 11-Speed Group, Plus New Mechanical + Hydraulic Road Disc Brakes! - Bikerumor
![Dual Control Lever | Shimano Lever 105 | Shifter | Bicycle Derailleur - Shimano 105 R7000 - Aliexpress Dual Control Lever | Shimano Lever 105 | Shifter | Bicycle Derailleur - Shimano 105 R7000 - Aliexpress](https://ae01.alicdn.com/kf/HLB1_Ho7XvLsK1Rjy0Fbq6xSEXXaY.jpg_640x640Q90.jpg_.webp)
Dual Control Lever | Shimano Lever 105 | Shifter | Bicycle Derailleur - Shimano 105 R7000 - Aliexpress
![Amazon.com: Shimano 105 ST-R7025 Right Compact Reach Hydraulic Brake/11- Speed Shift Lever, Sold Without Caliper : Sports & Outdoors Amazon.com: Shimano 105 ST-R7025 Right Compact Reach Hydraulic Brake/11- Speed Shift Lever, Sold Without Caliper : Sports & Outdoors](https://m.media-amazon.com/images/I/41VajJY5X-L._AC_UF894,1000_QL80_.jpg)