Shimano BB-UN300 bottom bracket for cranks with square taper. Suitable for frames with BSA threads and a shell width of 68 mm. Image may vary. Please refer to the product description for exact specifications.
| Axis diameter | 110 mm | 
| Frame compatibility | BSA | 
| Axis compatibility | Square-taper | 
| Box width | 68 mm | 
| Item number | 15729787 | 
| Manufacturer | Shimano | 
| Category | Bottom brackets | 
| Manufacturer no. | 62.78682 | 
| Release date | 20-4-2022 | 
| Colour | Silver | 
| Exact colour description | Black | 
| Bottom bracket design | Bolted bearing shells | 
| Frame compatibility | BSA | 
| Axis compatibility | Square-taper | 
| Box width | 68 mm | 
| Axis diameter | 110 mm | 
| Axis length | 110 mm | 
| Country of origin | France, Germany | 
| CO₂-Emission | |
| Climate contribution | 
| Axis length | 110 mm | 
| Axle diameter | 110 mm | 
| Weight | 284 g | 
| Length | 14 cm | 
| Width | 5 cm | 
| Height | 4.50 cm | 
| Weight | 288 g | 
| Product Safety | 
How often does a product of this brand in the «Bottom brackets» category have a defect within the first 24 months?
Source: GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: GalaxusHow often is a product of this brand in the «Bottom brackets» category returned?
Source: Galaxus