BB-UN300 bottom bracket British thread
BBUN300C18
4550170619244
The BB-UN300 bottom bracket British thread 73 - 118 mm Silver is available at the following locations.
The item will be transferred to the location you choose during checkout.
If the item is not currently available to view at your desired location, please call your nearest store to arrange for it to be transferred.
- A good quality bottom bracket for traditional chainsets
- Super-accurate bearings for smooth operation and improved durability
- Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
- Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
- Fast and easy installation without adjustment
- Narrow body allows clearance for cable routing under the bottom bracket
Shimano BBUN300 - 73mm Bottom Bracket - 118mm
| Colours | Silver |
| Sizes | 68 - 110 mm Chaincase, 68 - 117.5 mm Chaincase, 68 - 118 mm Chaincase, 68 - 122.5 mm, 68 - 122.5 mm (LL123) Chaincase, 68 - 122.5 mm E-type, 73 - 118 mm |
| Brand | Shimano |
| Model Year | 2025 |
| Barcodes | 4550170619169, 4550170619190, 4550170619244, 4550170619251, 4550170619268, 4550170619275, 4550170619299 |
| SKUs / Part Numbers | BBUN300B23, BBUN300C18, BBUN300EB23, BBUN300KB10, BBUN300KB17, BBUN300KB18, BBUN300KB23 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.
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