The SRAM GX Eagle rear derailleur in black is a high-quality, precision-engineered bike part designed for maximum performance on the trail. It features twelve gears at the rear, providing a wide range of options for tackling varying terrain and steep climbs. The black finish adds a sleek and stylish look to your bike while the durable construction ensures long-lasting durability. With smooth and precise shifting, the SRAM GX Eagle rear derailleur is a must-have component for any serious mountain biker looking to elevate their ride.