Shimano UN55 Bottom Bracket

The Shimano UN55 Bottom Bracket British Thread is a good quality bottom bracket that has been designed for traditional chainsets. It has super-accurate bearings for smooth operation and improved durability. Shimano have created a durable, hard-wearing sealed cartridge bottom bracket that has a square tapered spindle fitting. Its sealed cartridge bearing assembly keeps out dirt, mud and water for long bearing life. The bottom bracket is fast and easy to install and won’t require any adjustment. Shimano UN55 Bottom Bracket British Thread Features Lightweight hollow spindle Square tapered spindle fitting Super-accurate bearings Sealed cartridge bearing