Sram NX Eagle Rear Derailleur

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Completely new rear derailleur incorporating proven X-HORIZON™ design and new Type-3 ROLLER BEARING CLUTCH™ technology. Eagle™ ecosystem-engineered mounting system and CAGE LOCK™ p ositioning add robustness. Eagle™ pulley technology provides greater efficiency, crisper shifting and quieter operation. SRAM Model ID: RD-NX-1-B1 Attributes Cage Long Maximum Cog 50T Minimum Cog 10T Primary Color Black RD Capacity 40T Speed 12 Show more