Product Description
## Reliable Shimano Performance
The Shimano UN300 square taper bottom bracket is built for smooth, dependable performance across a wide range of bikes. Suitable for touring, city, road, and older MTB setups using traditional square taper chainsets.
## Smooth Cartridge Bearing Design
- Sealed cartridge bearing construction
- Smooth and reliable pedalling performance
- Designed for long-lasting durability
## Durable Construction
- JIS square taper interface
- Alloy bottom bracket cups
- Compatible with traditional square mount chainsets
## Wide Compatibility
- Suitable for touring and city bikes
- Compatible with older road and mountain bike cranksets
- BSA English threaded fitment
## Specifications
- **Shell Width:** 68mm
- **Thread:** BSA English 1.370" x 24tpi
- **MPN:** BBUN300B22
## Versatile Everyday Use
An ideal replacement bottom bracket for riders looking for reliable Shimano quality and smooth everyday performance.