The TEKTRO derailleur "RD-M5100-L" is a high-quality component for mountain bikes, suitable for both 10-speed and 11-speed shifting systems. With a maximum sprocket size of 50 teeth and a chainline of 47.5 to 52 mm, this derailleur offers precise and reliable shifting performance. The integrated clutch system enhances chain management and reduces the risk of chain drops, which is particularly advantageous in challenging terrain. Weighing only 385 g, it is lightweight yet robust enough to meet the demands of mountain biking. The elegant black finish seamlessly integrates into your bike's design, providing an appealing look.