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Shimano BB-UN300

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BrandMore from Shimano
Delivered between Tue, 27.5. and Fri, 30.5.
More than 10 items in stock at supplier

Product details

The Shimano BB-UN300 is a high-quality bottom bracket designed for improved performance and stability while cycling. It features a robust square axle and is equipped with high-quality cartridge bearings that ensure smooth operation and durability. This bottom bracket is available in various mounting types, including standard, E-Type, and chain guard options, to meet the diverse needs of cyclists. The use of aluminum for the adapter materials contributes to weight reduction and overall performance of the bottom bracket. With a shell width of 73 mm and an axle length of 113 mm, the BB-UN300 is versatile and offers excellent frame compatibility. The threaded bearing cups allow for easy installation and maintenance, making it a practical choice for all cyclists.

  • High-quality cartridge bearings for improved performance
  • Available in standard, E-Type, and chain guard variants
  • Robust square axle for increased stability
  • Aluminum adapter material for lightweight design
  • Easy installation with threaded bearing cups.

Key specifications

Axis diameter
34.80 mm
Frame compatibility
BSA
Axis compatibility
Square-taper
Box width
73 mm
Item number
16828829

General information

Manufacturer
Shimano
Category
Bottom brackets
Manufacturer no.
62.78670
Release date
14.10.2021
Sales rank in Category Bottom brackets
33 of 961

Colour

Colour
Black
Exact colour description
Black

Bottom Bracket Features

Bottom bracket design
Bolted bearing shells
Frame compatibility
BSA
Axis compatibility
Square-taper

Mounting

Box width
73 mm
Axis diameter
34.80 mm
Axis length
113 mm

Origin

Country of origin
France

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Axis length
113 mm
Axle diameter
122.50 mm
Weight
289 g

Package dimensions

Length
13.50 cm
Width
4.50 cm
Height
4.50 cm
Weight
308 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Bottom brackets» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Shimano
    0.1 %
  • 2.Sram
    0.2 %

Warranty case duration

How 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: Digitec Galaxus
  • Shimano
    Not enough data
  • Sram
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

How often is a product of this brand in the «Bottom brackets» category returned?

Source: Digitec Galaxus
  • 1.Sram
    3.5 %
  • 2.Shimano
    3.6 %
Source: Digitec Galaxus