| Article number: |
380231-02 |
| Quantity in stock: |
1 |
Shimano BBUN55 110x68mm
The Shimano BB-UN55 (110x68mm) is a highly durable, square-taper cartridge bottom bracket designed for British (BSA) threaded frames. While officially discontinued by Shimano and replaced by the UN300 series, the UN55 is highly regarded for its longevity and is often sought out as "new old stock".
Specifications
- Spindle Length: 110 mm
- Shell Width: 68 mm (English/BSA threading)
- Spindle Type: Square Taper (JIS)
- Threading: BC 1.37" x 24 TPI (English)
- Material: Steel/Aluminum with a sturdy non-drive side metal cup
Features
- Sealed Cartridge: Maintenance-free, sealed cartridge bearings keep out dirt, mud, and water, providing long life and smooth operation.
- Durable Design: Known for having a more robust construction than its successor (UN300) or predecessors (UN26).
- Compatibility: Fits a wide range of older road, mountain, and city bikes with BSA threaded shells.
Disclaimer:
We are doing our best to provide accurate and up to date descriptions, specifications and images of our products, but we cannot guarantee that they are absolutely correct. Please contact us if in doubt, or to confirm a particular feature or a spec which is important to you.
