The Shimano BB-UN300 is a high-quality bottom bracket designed for reliable performance in various bicycle frames. With a shell width of 68 mm and an axle length of 115 mm, this bottom bracket provides an optimal fit for BSA-compatible frames. The bottom bracket features a square taper interface that allows for easy installation and removal. Made from durable aluminum, the BB-UN300 ensures a long lifespan and high stability, even under demanding conditions. The threaded bearing cups provide secure and precise alignment, contributing to improved power transfer and a smooth riding experience. This bottom bracket is an excellent choice for cyclists who value quality and performance.
Axis diameter | 115 mm |
Frame compatibility | BSA |
Axis compatibility | Square-taper |
Box width | 68 mm |
Item number | 15722877 |
Manufacturer | Shimano |
Category | Bottom brackets |
Manufacturer no. | 62.78677 |
Release date | 22-4-2021 |
Colour | Silver |
Exact colour description | Silver |
Bottom bracket design | Bolted bearing shells |
Frame compatibility | BSA |
Axis compatibility | Square-taper |
Box width | 68 mm |
Axis diameter | 115 mm |
Axis length | 107 mm |
Country of origin | Germany |
CO₂-Emission | |
Climate contribution |
Axis length | 115 mm |
Axle diameter | 115 mm |
Length | 17 cm |
Width | 4 cm |
Height | 4 cm |
Weight | 270 g |
Product Safety |
How often does a product of this brand in the «Bottom brackets» category have a defect within the first 24 months?
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