SRAM Eagle 90 Transmission RD-90-A1 (T-Type) Derailleur - 1x12-speed
or 4 payments of with 
The NEW SRAM Eagle 90 Transmission derailleur redefines what’s possible for cable-actuated shifting. With a new T-Type cable actuation ratio, it delivers precise, crisp shifts every time. Its Full Mount design, shared with its electronic siblings, makes this the strongest mechanical derailleur SRAM has ever produced. It’s also fully rebuildable, thanks to replaceable outer and inner parallelogram links, skid plates, and a tool-free threaded cage assembly, ensuring enduring performance ride after ride.
SRAM Eagle 90 Transmission (T-Type) Derailleur
12-speed - 1x12s
RD-90-A1
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Features:
- Full Mount Design.
- T-Type compatibility.
- Silver/black colorway.
- Most robust mechanical derailleur.
- Replaceable skid plates, outer and inner parallelogram link, cage or cage assembly.
- The most rebuildable derailleur in the Eagle Transmission Ecosystem.
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Specifications:
| SPEED (RD) | 12 |
|---|---|
| CABLE PULL RATIO | T-Type actuation |
| CAGE (RD) | Long |
| MAX TOOTH | 52 |
| COLOR (RD) | Black |
| PULLEY BEARINGS MATERIAL | n/a |
| CAGE MATERIAL (RD) | Aluminum |
| DRIVETRAIN CONFIGURATION | 1x |
| COMMUNICATION PROTOCOL | n/a |
| SHIFT TECHNOLOGY | T-Type Actuation |
| CHAIN TECHNOLOGY | T-Type |
| WEIGHT (G) | 395g |
| WEIGHT BASED ON | Engineering Estimate |