Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. This rear derailleur is designed for fast and precise shifting performance. The Shadow Plus design uses a chain stabilising switch that reduces chain bounce in rough terrain, maintaining a more stable drive and shifting. The high tolerance cold forged aluminium link plates and body construction make it extremely light and durable. It is compatible with 11-speed HG chains and features a wide gear ratio up to 11-42T. Suitable for use with single chainsets, this derailleur weighs 267g.
Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. This rear derailleur is designed for fast and precise shifting performance. The Shadow Plus design uses a chain stabilising switch that reduces chain bounce in rough terrain, maintaining a more stable drive and shifting. The high tolerance cold forged aluminium link plates and body construction make it extremely light and durable. It is compatible with 11-speed HG chains and features a wide gear ratio up to 11-42T. Suitable for use with single chainsets, this derailleur weighs 267g.
in 43 offers
last seen 19 Oct 2026
The lowest price we last saw for Shimano GRX Rd-rx812 11 Speed 1x Rear Derailleur was $105.00 at Eat Sleep Cycle, compared across 30 retailers (last seen 19 Oct 2026). Prices may have changed since.
The all-time low we recorded was $64.79 on 24 Sept 2024.
Prices last updated 19 Oct 2026.
Shimano GRX Rd-rx812 11 Speed 1x Rear Derailleur
Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. This rear derailleur is designed for fast and precise shifting performance. The Shadow Plus design uses a chain stabilising switch that reduces chain bounce in rough terrain, maintaining a more stable drive and shifting. The high tolerance cold forged aluminium link plates and body construction make it extremely light and durable. It is compatible with 11-speed HG chains and features a wide gear ratio up to 11-42T. Suitable for use with single chainsets, this derailleur weighs 267g.
Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. This rear derailleur is designed for fast and precise shifting performance. The Shadow Plus design uses a chain stabilising switch that reduces chain bounce in rough terrain, maintaining a more stable drive and shifting. The high tolerance cold forged aluminium link plates and body construction make it extremely light and durable. It is compatible with 11-speed HG chains and features a wide gear ratio up to 11-42T. Suitable for use with single chainsets, this derailleur weighs 267g.
Last updated at 19/10/2026 04:03:06
Shimano RR Mech RX812 GRX 11 Speed Shadow+ Single 42T
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Shimano GRX RD-RX812 11sp Rear Derailleur 812-42D
Delivery $161.93
Shimano GRX RD-RX812 1x11S Gravel rear derailleur Cage Long
Delivery between Tue – Wed $40.44
Shimano Grx Rd-rx812 11-speed Shadow+ Gravel Bike Rear Derailleur
Delivery $10
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano RD-RX812 GRX Rear Derailleur 11 Speed Long Cage Compatible with R7000 R8000 for Gravel Bike
Delivery $12.99
SHIMANO - RD-RX810 + RD-RX812 GRX Rear Derailleur RD-RX812 Black 1x11v
Delivery $50
Shimano (Cycling) Grx Rd-rx812 Rear Derailleur Direct Mount 1x11s Irdrx812
Delivery between 23–27 Oct $127.05
Shimano RD-RX812 Rear Derailleur GRX 11-Speed 42T Max
Free delivery between 19–29 Oct
Shimano GRX RD-RX812 Rear Derailleur 42T Max
Delivery between 22–30 Oct $9.50
Shimano GRX RD-RX812-R 11-Speed for 42T Max Shadow+ Rear Derailleur
Free delivery between Tue – Fri
| Number Of Speeds | 11-speed |
| Shifting Type | Mechanical |
| Size | one size |
| Weight | 264 g (manufacturer information) |
| Width | No information |
Shimano RR Mech RX812 GRX 11 Speed Shadow+ Single 42T
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano GRX RD-RX812 11sp Rear Derailleur 812-42D
Delivery $161.93
Shimano GRX RD-RX812 1x11S Gravel rear derailleur Cage Long
Delivery between Tue – Wed $40.44
Shimano Grx Rd-rx812 11-speed Shadow+ Gravel Bike Rear Derailleur
Delivery $10
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano RD-RX812 GRX Rear Derailleur 11 Speed Long Cage Compatible with R7000 R8000 for Gravel Bike
Delivery $12.99
| Number Of Speeds | 11-speed |
| Shifting Type | Mechanical |
| Size | one size |
| Weight | 264 g (manufacturer information) |
| Width | No information |
