---
product_id: 281705119
title: "SHIMANO UN300 English Bottom Bracket"
price: "€ 50.50"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/281705119-shimano-un300-english-bottom-bracket
store_origin: SK
region: Slovakia
---

# SHIMANO UN300 English Bottom Bracket

**Price:** € 50.50
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** SHIMANO UN300 English Bottom Bracket
- **How much does it cost?** € 50.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/281705119-shimano-un300-english-bottom-bracket)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

UN300 English Bottom Bracket

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08C786DW8 |
| Best Sellers Rank | #78,555 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #16 in Bike Bottom Brackets |
| Brand Name | SHIMANO |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (329) |
| Date First Available | November 17, 2009 |
| Included Components | Bottom Brackets |
| Item Dimensions LxWxH | 5.63 x 2.03 x 1.91 inches |
| Item Package Dimensions L x W x H | 6.61 x 2.17 x 1.93 inches |
| Manufacturer | Shimano |
| Material | Alloy |
| Model Name | Bsa 68mm, Spindle: 122.5mm |
| Number of Items | 1 |
| Package Weight | 0.3 Kilograms |
| Part Number | EBBUN300B22X |
| Size | One Size |
| Sport Type | Cycling |
| Style | Bottom Bracket |
| Suggested Users | unisex |
| Warranty Description | Limited Warranty |

## Images

![SHIMANO UN300 English Bottom Bracket - Image 1](https://m.media-amazon.com/images/I/51PPpbGvVfL.jpg)

## Questions & Answers

**Q: The tittle says 110 mm long but the image says 123, shall I trust its a 110mm ?**
A: Different lengths may be available depending on the part number chosen. The same image may be used for multiple products of similar type.

**Q: Is this equal to a shiman0 un26, 68x127,5mm bottom bracket.**
A: Please watch RJ the bike guy's How To Upgrade Vintage Bike With Sealed Cartridge Bottom Bracket in YouTube

**Q: Will this fit a mongoose sycamore 26in mountain bike**
A: when you remove the old one read the dimensions on the bb.  you can even take a measuring tape and measure the hole.  don't throw away the used one until the new one is found and installed.  maybe youtube your bike repair.

**Q: How much does this bottom bracket weigh?**
A: Amazon’s specs say .29 Kg. As the package weight. The packaging would not be significant.

## Frequently Bought Together

- SHIMANO Square Type Bicycle Bottom Bracket - BSA 68MM, Spindle: 122.5MM - EBBUN300B22X
- BIKEHAND Bike Bicycle Compatible with Shimano Bottom Bracket Removal Remover Tool
- Park Tool PolyLube 1000 Bicycle Grease

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**Shop now:** [https://www.desertcart.sk/products/281705119-shimano-un300-english-bottom-bracket](https://www.desertcart.sk/products/281705119-shimano-un300-english-bottom-bracket)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-07*