Product details
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Shimano RX812 Rear Derailleur Long cage Grey
About This Item
Rear Der Shimano RD-RX812 GRX 11-Speed Wide Type
When the going gets gravelly
Gravel-tuned chain stabilization and drivetrain performance.
The Shimano GRX RX812 11-speed rear derailleur provides silent rear shifting on rough terrain. An adjustable Shimano Shadow RD+ clutch prevents chain slapping and drops.
Key Features
Compatible with Shimano road Dual Control Levers
Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
Toggle clutch on/off to match the terrain
For 1x drivetrains
Low sprocket max/min: 42T/40T
Features
Shimano GRX
Shimano GRX was designed from the ground up for gravel adventure. With its gravel-specific ergonomics, optimized gearing options, rugged reliability, and quiet, stable drivetrain, GRX sets itself apart from the rest of the component world.
Shadow RD+
Shimano's Shadow RD+ technology uses an adjustable rear derailleur clutch to reduce chain slap over rough terrain. This simple chain drop solution is lighter and more efficient than roller bearing chain management devices.
Specifications
Color Grey
Size Long cage
Gender unisex
Intended User Age 12 years and over
Model Year 2026
Specifications
Brand Shimano
Condition New
Type Rear Derailleur
Part type Derailleur
Bike type Derailleur (rear)
Size Long cage
Colour Grey
Frame size Long cage
Manufacturer part number IRDRX812
UPC 192790448886
Unbeatable Year-Round Bargains
Wheel & Sprocket has been family owned since 1973, with shops across Milwaukee, the Fox Valley, Madison and Chicagoland. Every order is picked and packed by people who ride, and if something is not right a mechanic will answer you — not a script.
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Wheel & Sprocket Outlet · Item 192790448886
Item specifics
| Condition | New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... |
|---|---|
| Size | Long cage |
| Sport Activity | Cycling |
| Model Year | 2026 |
| Frame Size | Long cage |
| Finish | Grey |
| Compatible With | Shimano road Dual Control Levers |
| Bike Type | Derailleur (rear) |
| Country of Origin | Japan |
| Compatible Brand | Shimano |
| Brand | Shimano |
| Color | Black |
| Model | Shimano RD-RX812 |
| Compatible Bike Type | Road Bike, Cross Bike, Hybrid Bike, Gravel Bike, Cyclocross Bike, Racing Bike |
| MPN | RD-RX812 |
| Material | Alloy |
| Mounting Type | Bolt-On |
| Number of Speeds | 11 Speed |
| Item Weight | 267 g |
| Part Type | Rear Derailleur |
| Derailleur Cage Length | Long Cage |
