Shimano BB-UN300 Bottom Bracket BSA Square Taper Black

Shimano BSA Bottom Bracket Axle 113MM/73MM BB-UN300 Square Taper

The Shimano BB-UN300 bottom bracket delivers reliable, long-lasting performance thanks to its Shimano-quality cartridge bearing design. It is designed to provide greater chainline stability through its stabiliser system, improving pedalling efficiency and smoothness in use. Its robust construction and configuration options make it a versatile solution for many builds.

- Features:

• Use: Bottom bracket axle
• Model: BB-UN300
• Bottom bracket type: Square taper
• System: Shimano cartridge bearings
• Shell width: 73 mm (BSA)
• Axle length: 113 mm
• Stability: Chainline stabiliser for better alignment
• Available structures: Standard, E-type, chaincase options
• Adapter material: Aluminium
• Fixing bolts: Not included
• Package type: Individual unit

Brand: Shimano