The rear derailleur pulley is an essential component for or road bike enthusiast. Whether you're tackling trails or cruising on smooth roads, this practical bike sprocket ensures smooth and efficient gear changes. To use, simply replace your old pulley with this sturdy bike sprocket, ensuring it fits securely. This anti-wear bike sprocket is designed to withstand the rigors of intense cycling, making it a reliable choice for all your biking adventures. Features - Color: Red -Material:Alloy - Size: 4.40X4.40X0.50cm/1.73X1.73X0.20in -Enhanced durability: the bearing anodizing treatment significantly boosts the sprocket's resistance to wear and tear, extending its service life - design: made from lightweight aluminum alloy, this sprocket helps in reducing the bike's weight, thereby enhancing your cycling speed and performance -Smooth gear shifting: featuring an 11t pulley wheel, this sprocket ensures seamless and efficient gear changes, enhancing your riding efficiency -Mountain bike compatibility: this precisionengineered sprocket is ideal for mountain bikes, providing improved stability and control during rides -Userfriendly replacement: the sprocket is designed for easy and quick installation, allowing cyclists to replace it effortlessly and maintain their bikes with ease Package list: 1 x Sprocket with Accessories