The Shimano BB-UN300 bottom bracket features a square-taper spindle and sealed cartridge bearings. The chainline stabilizer helps keep the chain better aligned.
- Type: Square taper
- Bearings: Sealed cartridge
- Chainline stabilizer: Included
- Adapter material: Aluminum
- Series: TOURNEY TX800
- Bike types: Mountain, city, trekking, and road bikes
- Bike part: Drivetrain
- Product Number
- EBBUN300B13X
- Type
- Medium Friction
- Bicycle Parts
- For the Gears
- Type
- Mountain Bike, City, Trekking, Road
- 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.