Compatibility is a key feature of the bicycle integrated bottom bracket conversion sleeve. It works seamlessly with a variety of bottom bracket types and cranksets, making it a addition to any bike maintenance toolkit. The washer ensures that the conversion sleeve fits snugly, preventing any unwanted movement or noise during rides. This product is for cyclists who frequently switch between different bikes or components. Features - Color: Black -Material:Iron - Size: 3.00X3.00X0.10cm/1.18X1.18X0.04in - Size: 3.85X3.85X0.10cm/1.51X1.51X0.04in -Broad compatibility: this bottom bracket adapter sleeve is designed to work with washers, making it compatible with a wide range of bicycle brands and models -Durability: engineered to resist high pressure, this adapter sleeve is highly durable, ensuring it can withstand extensive use -Effortless installation: the easy to use design allows for easy installation without the need for tools, making it convenient for all users -Durable riding experience: by reducing vibrations and noise, this bottom bracket adapter sleeve enhances riding stability and comfort -Longterm use: with meticulous design and manufacturing, this adapter sleeve is built for longevity, ensuring it remains over time Package list: 1 x Bike Gasket