🚴♂️ Shift into the future of cycling! Designed for adults and suitable for all cycling enthusiasts, regardless of gender. Experience the precision of SIS rear index shifting for effortless gear changes. SGS cage accommodates a wide range of gearing, handling up to 34-tooth sprockets. Weighing in at just 400g, this derailleur enhances your bike's performance without the bulk. Equipped with 13-tooth pulleys for extended service life and reduced noise. Quiet operation Durable aluminum build 6/7-speed compatibility The Shimano Cambio Post RD-TY300 is a high-performance 6/7-speed rear derailleur designed for seamless shifting and durability. With its SGS cage, it can handle a wide range of gearing, making it perfect for various cycling terrains. The lightweight aluminum construction ensures longevity and quiet operation, making it an essential upgrade for any serious cyclist.