---
product_id: 213407565
title: "Shimano UN300 English Bottom Bracket"
brand: "shimano"
price: "441 kr"
currency: NOK
in_stock: true
category: "Shimano"
url: https://www.desertcart.no/products/213407565-shimano-un300-english-bottom-bracket
store_origin: NO
region: Norway
---

# Fits JIS square-taper cranksets with 68mm shell width 113mm spindle length for optimal power transfer Sealed design for enhanced durability and low maintenance Shimano UN300 English Bottom Bracket

**Brand:** shimano
**Price:** 441 kr
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your ride with Shimano’s precision-engineered bottom bracket — because every pedal stroke counts!

## Quick Answers

- **What is this?** Shimano UN300 English Bottom Bracket by shimano
- **How much does it cost?** 441 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/213407565-shimano-un300-english-bottom-bracket)

## Best For

- shimano enthusiasts

## Why This Product

- Trusted shimano brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tailored Fit:** Compatible with JIS square-taper cranksets and standard 68mm English shell width
- • **Customizable Setup:** Multiple spindle and shell length options to match your unique ride style
- • **Lightweight Strength:** Constructed from extra-strong aluminum alloy for a perfect balance of weight and resilience
- • **Durability Meets Design:** Sealed bottom bracket keeps grit out, ensuring long-lasting performance
- • **Precision Power Transfer:** 113mm hollow spindle engineered for smooth, efficient pedaling

## Overview

The Shimano UN300 English Bottom Bracket is a high-quality, sealed bottom bracket designed for JIS square-taper cranksets. Featuring a 113mm hollow spindle and a 68mm shell width, it offers enhanced chain reliability through its chain line stabilizer and durable aluminum alloy construction. Available in multiple spindle and shell length configurations, it delivers a customizable, lightweight, and long-lasting drivetrain upgrade for serious cyclists.

## Description

The Shimano UN300 English Bottom Bracket High quality sealed bottom bracket with a squared taper. The new chain line stabilizer helps to increase chain reliability. The adapter material is extra strong Aluminum. For use with JIS square tapered crank sets. The spindle is hollow and crankarm fixing bolts are sold separately. Available in Shell lengths 68mm or 73mm. Available in Spindle lengths 68mmx107mm, 68mmx110mm, 73mmx113mm, 68mmx115mm, 68mmx117.5mm 73mmx118mm, 73mmx122.5mm, and 68mmx127.5mm.

## Features

- Fits JIS square-taper cranksets
- Spindle Length: 113
- BB Shell Width (mm): 68 mm
- Bottom Bracket Shell I.D.: 1.37
- Crankarm fixing bolts sold separately

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08BX7TJPP |
| Best Sellers Rank | #31,820 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Bike Bottom Brackets |
| Brand Name | SHIMANO |
| Color | noir/argentà |
| Customer Reviews | 4.6 4.6 out of 5 stars (345) |
| Date First Available | June 26, 2020 |
| Included Components | Bottom Brackets |
| Item Dimensions LxWxH | 5.63 x 2.03 x 1.91 inches |
| Item Package Dimensions L x W x H | 6.57 x 1.89 x 1.73 inches |
| Item Weight | 0.27 g |
| Manufacturer | Shimano |
| Material | Alloy |
| Model Name | Bottom Bracket - English, 68 X 113mm |
| Number of Items | 1 |
| Package Weight | 0.29 kg |
| Part Number | EBBUN300B13X |
| Size | 68mmx113mm |
| Sport Type | Cycling |
| Style | Bottom Bracket - English, 68 X 113mm |
| Suggested Users | unisex |
| Warranty Description | Limited Warranty |

## Images

![Shimano UN300 English Bottom Bracket - Image 1](https://m.media-amazon.com/images/I/41QjsQ9afqL.jpg)

## Available Options

This product comes in different **Color, Size** options.

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**Shop now:** [https://www.desertcart.no/products/213407565-shimano-un300-english-bottom-bracket](https://www.desertcart.no/products/213407565-shimano-un300-english-bottom-bracket)

---

*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-24*