The Shimano UN300 bottom bracket is a square-taper type and uses cartridge bearings. The chain stabilizer helps keep the chainline stable.
It is available in three configurations: Standard, E-type, and for use with a chain guard. The adapter is made of aluminum.
- Axle type: Square taper
- Bearings: Cartridge
- Chain stabilizer: Included
- Configurations: Standard, E-type, and for use with a chain guard
- Adapter material: Aluminum
- Type: Bottom bracket
- Bicycle part: Drivetrain
- Product Number
- EBBUN300B10X
- Type
- Medium Friction
- Bicycle Parts
- For the Gears
- Type
- -
- Wheel Size
- -
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.