Shimano BB-UN300 Bottom Bracket 73x118mm

Shimano - Square Type Bottom Bracket - MTB - Standard Structure

Features

- Square Type Bottom Bracket
- Shimano quality/performance cartridge bearing square bottom bracket
- Better chainline stability with chain line stabilizer
- 3 structures available
- Standard, E-type, chain case options
- Adapter material: Aluminum SPECIFICATIONS model no BB-UN300 series Tourney TX800 Series