The Shimano BB-UN300-LL Bottom Bracket delivers smooth pedaling performance and long-lasting reliability for square taper cranksets. Designed with precision and built to withstand the demands of everyday riding, it offers a secure fit and consistent operation mile after mile.
Key Features:
- Thread-in design for straightforward installation and maintenance
- Shell width compatibility: 68 mm and 73 mm
- 122.5 mm spindle length for square taper cranksets
- Durable construction for long service life
- Part of Shimano’s trusted UN300 series for dependable performance
Who is it for?
Ideal for riders using square taper cranksets who want a reliable, low-maintenance bottom bracket for road, city, or mountain bikes.
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