SRAM Red WiFli Rear Derailleur - 11 Speed Medium Cage Black. Top-of-the-line rear derailleur with generous use of carbon fiber and titanium for maximum performance at minimal weight.Carbon fiber and aluminum constructionCeramic bearing pulleysTitanium hard
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SRAM Red WiFli Rear Derailleur – 11 Speed Medium Cage Black. Top-of-the-line rear derailleur with generous use of carbon fiber and titanium for maximum performance at minimal weight.
| Rear Derailleur Mount Type | 10×1 Standard |
| Rear Der/Shifter Compatibility | SRAM Exact Actuation |
| Cage Length | Medium |
| Drivetrain Speeds | 11 |
| Weight | 152 |
| Color | Black |
| keyword search | RD4621 |
| Chain Wrap Capacity (teeth) | 37 |
| Largest Cog | 32 |
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