Shimano BB-UN300 68mm Square Taper Bottom Bracket BBUN300B27

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.

The Shimano BB-UN300 Bottom Bracket British Thread is a good quality bottom bracket for traditional chainsets. Super-accurate bearings for smooth operation and improved durability.Shimano BB-UN300 Bottom Bracket British Thread FeaturesDurable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fittingMaintenance-free sealed ca... morertridge bearing assembly keeps out dirt, mud, and water for long bearing lifeFast and easy installation without adjustmentNarrow-body allows clearance for cable routing under the bottom bracket