Shimano BB-UN300 68mm Square Taper Bottom Bracket
Shimano’s tried and trusted BB-UN300 68mm Bottom Bracket is perfect for traditional square taper chainsets, providing superb reliability and easy installation. The sealed bearings are smooth and durable whilst the narrow body leaves plenty of room within the frame for cable routing.
- A good quality bottom bracket for traditional chainsets
- Super-accurate bearings for smooth operation and improved durability
- Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
- Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
- Fast and easy installation without adjustment
- Narrow body allows clearance for cable routing under the bottom bracket