Shimano The Rear Derailleur RD-TY21B 6/7 Speed Hanger Mount is a high-quality aluminum component designed for mountain bikes and tricycles. This model features a hanger mount style and a black color, making it both functional and stylish. With a weight of 0.71 pounds and dimensions of 5.79×4.29×3.43 inches, this rear derailleur is durable and compact, perfect for any cycling enthusiast looking to upgrade their bike’s rear derailleur.
