SRAM Apex D1 Eagle 12-Speed Rear Derailleur
Product Details
The SRAM Apex D1 Eagle 12-Speed Rear Derailleur combines SRAM's proven road and mountain bike technologies to deliver dependable shifting across demanding terrain. Designed for 1x drivetrains, it pairs with SRAM 12-speed mechanical Apex and Eagle shifters while supporting Eagle cassettes up to 52T, providing an exceptionally wide gear range for gravel adventures, bikepacking, and steep off-road climbs.
Trail-proven features like the Roller Bearing Clutch and X-HORIZON architecture keep the chain secure and shifts crisp, even over rough surfaces. The straight parallelogram design minimizes shift effort while eliminating ghost shifting, and Cage Lock technology simplifies wheel removal and chain installation for easier maintenance. Whether you're building a drop-bar adventure bike or upgrading an existing drivetrain, the Apex D1 Eagle derailleur delivers smooth, reliable performance ride after ride.
Key Features
- Wide-Range 12-Speed Compatibility – Compatible with SRAM 12-speed mechanical Apex and Eagle shifters and Eagle 50T or 52T cassettes.
- X-HORIZON and Roller Bearing Clutch – Delivers stable chain retention and precise shifting while eliminating ghost shifts.
- Cage Lock Technology – Simplifies wheel removal and chain installation for faster, easier maintenance.
Rear Derailleur Specifications
| Specification | Details |
|---|---|
| Speed (RD) | 12 |
| Cable pull ratio | X-actuation |
| Cage (RD) | n/a |
| Max tooth | 52 |
| Color (RD) | Black |
| Pulley bearings material | Steel |
| Cage material (RD) | Aluminum |
| Drivetrain Configuration | 1x |
| Communication Protocol | n/a |
| Shift Technology | X-Actuation |
| Chain Technology | Eagle |