Shimano BB-UN300

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Product details

The Shimano BB-UN300 is a high-quality bottom bracket designed for reliable performance and durability. It is a square taper bottom bracket compatible with BSA shells, making it ideal for various bicycle frames. With a shell width of 68 mm and an axle length of 117.5 mm, it offers an optimal fit and stability. The bottom bracket is made from robust aluminum, which not only reduces weight but also enhances durability. The threaded bearing cups ensure easy installation and maintenance. This product is an excellent choice for cyclists who value quality and performance.

  • Compatible with BSA frames for versatile applications
  • Lightweight aluminum material for improved performance
  • Easy installation thanks to threaded bearing cups
  • Optimal stability with a precise axle length of 117.5 mm.

Key specifications

Axis diameter
34.80 mm
Frame compatibility
BSA
Axis compatibility
Square-taper
Box width
68 mm
Item number
15722879

General information

Manufacturer
Shimano
Category
Bottom brackets
Manufacturer no.
62.78668
Release date
22/4/2021

Colour

Colour
Silver
Exact colour description
Black

Bottom Bracket Features

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

Mounting

Box width
68 mm
Axis diameter
34.80 mm
Axis length
117 mm

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Axis length
117.50 mm
Axle diameter
117 mm
Weight
277 g

Package dimensions

Length
17.10 cm
Width
4.80 cm
Height
4.60 cm
Weight
297 g

Legal Notice

Product Safety

14-day cancellation right
30-day right of return
24 Months statutory warranty

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Reviews & Ratings

Statutory warranty score

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

Source: Galaxus
  • 1.Shimano
    0,2 %
  • 2.Sram
    0,3 %

Statutory 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: Galaxus
  • 1.Shimano
    0 days
  • Sram
    Not enough data

Return rate

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

Source: Galaxus
  • 1.Sram
    2,9 %
  • 2.Shimano
    3,5 %
Source: Galaxus