Shimano Square Taper Bottom Bracket BB-UN300 - BSA 73mm
Shimano JIS Square Taper Bottom Bracket - BSA 73mm
The quality and performance-oriented Shimano BB-UN300 sealed cartridge bearing bottom bracket features a JIS square taper mount and is designed for frames with BSA thread and 73 mm shell width. A stabilizer ensures a constant chain line.
A good quality bottom bracket for traditional chainsets with super-accurate bearings for smooth operation and improved durability.
Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life.
Narrow body allows clearance for cable routing under the bottom bracket.
- Model: BB-UN300
- BB-Type: Square Taper
- Threaded: BSA
- Threaded BB shell width: 73mm
- Adapter: aluminium (left), aluminium / steel (right)
- Axle: Steel
- Axle Lengths: (Please contact us for details)
- 113mm
- 118mm
- 122.5mm (D-NL/B)
- 123mm (LL123 for chainline 50mm)
Note:
1. Original Shimano product in retail packaging.
2. Does not come with crank bolts.
3. Bottom bracket/s installed are not refundable or exchanged for different length/s.
Made in Indonesia.