Shimano BB-UN300 Square Taper BSA Bottom Bracket

Shimano BB-UN300 Square Taper BSA Bottom Bracket
17 reviews
Bottom Bracket Width
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16,95 5,04 discount
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  • Ordered before 22:00, delivered tomorrow
  • Free tracked shipping over € 49,-

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Pros & Cons

Pros & Cons

  • This bottom bracket is easy to install yourself.
  • The bearings rotate smoothly and have a good durability.
  • This bottom bracket is on the heavy side.
Read more on what our customers have to say about this product

Specifications

Specifications

Brand
Shimano
Types Screw Thread
BSA
Suitable for
Race / MTB
Crankset axle fit
Square Taper
Bottom Bracket Diameter
33.6-33.9 mm

Description

Description

This Shimano BB-UN300 bottom bracket is a solid and smooth-running square taper bottom bracket. You can easily mount the matching crank on it and it has a good durability.

High quality and performance
This Shimano BB-UN300 square axle bottom bracket in the Alivio range has a very strong and durable design, allowing you to transfer power to your wheels with as little resistance as possible. The axle is made of steel and the bearings are well sealed. This makes this bottom bracket durable and low-maintenance!

Technology

SHIMANO - bottom bracket square type - MTB - standard structure

Bottom bracket with square axle

High-performance SHIMANO bottom bracket with square axle
Greater chainline stability with chainline stabiliser
3 structures available
Options: stand, E-type, chain guard
Bracket material: aluminium
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Reviews

Reviews

4.8 / 5
Average from 17 reviews
5
15 reviews
4
1 review
3
1 review
2
0 reviews
1
0 reviews

Most recent reviews

5 / 5

Quickly found the product and handled smoothly.

- Coen 6 April 2024

Positive introduction to this shop.

Pros & Cons

Clear we site
Fast processing
Automatic translation

5 / 5

top product

- joost 22 March 2024

japanese quality bearings

Automatic translation

5 / 5

So far, so good!

- Adriaen 10 October 2023

The BB-UN 60 was no longer available, so ordered the 300. Can be transferred 1 to 1 without further modifications.

Pros & Cons

Fits perfectly as a replacement for the BB-UN 60 60.
Automatic translation

5 / 5

Highly recommended for anyone looking for this type of bottom bracket.

- Arnold 10 August 2023

This bottom bracket rotates more lightly than the original one.

Pros & Cons

Easy to assemble with the right tools
On the plus side, this bottom bracket has no downsides.
The bottom bracket rotates lightly
Automatic translation

5 / 5

Good quality

- Henk 23 July 2023

Looks and fits well

Pros & Cons

Fixed bearings
Made of aluminium
Sizes match
Automatic translation

5

Coen, 6 April 2024

Quickly found the product and handled smoothly.

Positive introduction to this shop.

  • Clear we site
  • Fast processing
Automatic translation

5

joost, 22 March 2024

top product

japanese quality bearings

Automatic translation

5

Adriaen, 10 October 2023

So far, so good!

The BB-UN 60 was no longer available, so ordered the 300. Can be transferred 1 to 1 without further modifications.

  • Fits perfectly as a replacement for the BB-UN 60 60.
Automatic translation

5

Arnold, 10 August 2023

Highly recommended for anyone looking for this type of bottom bracket.

This bottom bracket rotates more lightly than the original one.

  • Easy to assemble with the right tools
  • On the plus side, this bottom bracket has no downsides.
  • The bottom bracket rotates lightly
Automatic translation

5

Henk, 23 July 2023

Good quality

Looks and fits well

  • Fixed bearings
  • Made of aluminium
  • Sizes match
Automatic translation


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Shimano BB-UN300 Sunrace BSA 68/122mm Steel
Shimano BB-UN300 Sunrace BSA 68/122mm Steel
17 reviews 1 review
Types Screw Thread BSA BSA
Suitable for Race / MTB
Crankset axle fit Square Taper Square Taper
Bottom Bracket Width 68 / 110 mm / 68 / 118 mm / 68 / 113 mm / 68 / 122.5 mm / 68 / 127 mm / 73 / 118 mm / 73 / 122,5 mm / 73 / 113 mm 68 / 122 mm
Bottom Bracket Diameter 33.6-33.9 mm
- Yes / No
16,95 12,95
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