Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

Shimano BB-UN300

Price in EUR including VAT
Delivered between Mon, 27/4 and Wed, 29/4
More than 10 pieces in stock at supplier
Free shipping starting at 39,–

Product details

The Shimano Bottom Bracket BB-UN300 is a high-quality and powerful square taper bottom bracket suitable for a variety of bicycles. With a shell width of 68 mm and an axle length of 122.5 mm, it provides a reliable and stable base for the bottom bracket setup. The bottom bracket features a BSA installation type, allowing for easy installation and maintenance. The use of aluminum as the adapter material ensures high strength and durability, while the square design guarantees precise power transfer. This bottom bracket is ideal for cyclists who value quality and performance and are looking for a reliable solution for their cycling needs.

  • High-quality square taper bottom bracket for improved performance
  • Compatible with BSA frames for easy installation
  • Aluminum adapter for increased strength and durability
  • Suitable for standard, E-Type, and chain case variants
  • Screwed bearing cups for easy maintenance.

Key specifications

Frame compatibility
BSA
Axis compatibility
Square-taper
Box width
68 mm

General information

Item number
15729786
Manufacturer
Shimano
Category
Bottom brackets
Manufacturer no.
62.78665
Release date
20/4/2022

Colour

Colour
Silver
Exact colour description
Silver

Bottom Bracket Features

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

Mounting

Box width
68 mm
Axis length
122 mm

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂ emissions
3,21 kg
Climate contribution
EUR 0,12

Product dimensions

Axis length
122.50 mm
Weight
305 g

Legal Notice

Product Safety

Package dimensions

Length
17 cm
Width
4.50 cm
Height
4.50 cm
Weight
306 g

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

Compare products

Goes with

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.Sram
    0,3 %
  • 2.Shimano
    0,4 %

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
    3,9 %
  • 2.Shimano
    4 %
Source: Galaxus