The integrated bottom bracket conversion sleeve for bicycles is designed to be compatible with washers. This product is essential for cyclists looking to upgrade or maintain their bike's bottom bracket system. It ensures a smooth and efficient ride by providing a secure fit and reducing friction between the crankset and the bottom bracket. Ideal for both mountain and road bikes, this conversion sleeve is for any serious cyclist. Features - Color: Black -Material:Iron -Size:2.40X2.40X0.10cm/0.94X0.94X0.04in -Size:3.00X3.00X0.30cm/1.18X1.18X0.12in -Compatibility: compatible with washers, this bottom bracket adapter sleeve fits a wide range of bicycle brands and models, ensuring versatility. -Durability: engineered for durability, it offers excellent resistance to pressure, making it a reliable choice for longterm use. -Easy installation: designed for easy to use installation, it requires no tools, allowing you to set it up effortlessly on your own. -Enhanced riding experience: the bottom bracket adapter sleeve provides a more stable riding performance, reducing vibrations and noise during rides. -Longevity: meticulously designed and manufactured, this product boasts a long lifespan, ensuring it remains functional and over time. Package list: 1 x Bike Gasket