The Shimano BB-UN300 bottom bracket features a square-taper spindle and sealed cartridge bearings. The chain stabilizer helps maintain a stable chainline, and it is available in Standard and E-type versions, as well as an option for a chain guard.
- Spindle type: Square taper
- Bearings: Sealed cartridge
- Chainline stabilization: With chain stabilizer
- Configurations: Standard, E-type, and option for a chain guard
- Adapter material: Aluminum
- Use: For mountain, city, and trekking bikes
- Drivetrain: For geared bikes
- Product Number
- EBBUN300B22X
- Type
- Medium Friction
- Bicycle Parts
- For the Gears
- Type
- Mountain Bike, City, Trekking
- 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.