Shimano BBUN300 Bottom Bracket British thread

Description

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

Size – 73 – 113mm

Fast and easy installation without adjustment

Narrow body allows clearance for cable routing under the bottom bracket