New in original packaging

Shimano Bottom Bracket BB-UN55.

110 BC137 73

Width 110 mm (MM107)

Axle length/shell width (mm)|LL107|73 (BC1.37)

Brand:Shimano A good quality bottom bracket for traditional chainsets.

Key Features:

Super-accurate bearings for smooth operation and improved durability

Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting

Lightweight hollow spindle

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