Square Type Bottom Bracket
FEATURES
- 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
Shimano Bb-Un300 Bottom Bracket 73x118mm Xl w/o Fixing Bolts
$20.99
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Square Type Bottom Bracket
FEATURES
- 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