This is an old - style Birel axle cassette specifically designed for 50mm bearings. It offers reliable performance and is a great choice for your relevant equipment.
Using this Birel 50mm rear bearing cassette is easy. Just install it onto your compatible equipment following the standard installation process. When installing, make sure it fits snugly to avoid any loose connections. As for maintenance, regularly check the cassette for any signs of wear and tear, such as cracks or excessive friction. If you notice any issues, it's best to replace the cassette promptly. Also, keep it clean from dirt and debris to ensure its smooth operation. And don't forget to handle it gently during installation and removal to prevent any damage.
