The TEKTRO derailleur "RD-T5100-S" is a high-quality component for racing bikes that offers precise and reliable shifting performance. With a 10-speed gear level, it enables smooth gear changes, while the maximum sprocket size of 50 teeth ensures a wide gear range. The derailleur has a chainline of 47.5 to 52 mm, making it versatile for various setups. Weighing only 330 grams, it is lightweight and does not add to the overall load of the bike. The mechanical shifting provides direct and intuitive operation, ideal for demanding riders who value performance and efficiency. Its elegant black design harmoniously integrates into the overall look of a racing bike while offering a robust construction that ensures durability.