---
product_id: 338487625
title: "4Pcs Bike Ball Bearing Retainer Replacement Mountain Bike Parts 1/4 inch x 9 Balls Bicycle Repair Accessories for Kids/Stretch Bicycle MTB Bicycle Ball Bearings Bike Crank Bottom Bracket"
brand: "yunmoxiao"
price: "9408CFA"
currency: XOF
in_stock: true
reviews_count: 9
category: "Yunmoxiao"
url: https://www.desertcart.sn/products/338487625-4pcs-bike-ball-bearing-retainer-replacement-mountain-bike-parts-1
store_origin: SN
region: Senegal
---

# 9 high-strength 1/4in steel balls 1.14in OD precision fit Universal MTB & kids bike compatibility 4Pcs Bike Ball Bearing Retainer Replacement Mountain Bike Parts 1/4 inch x 9 Balls Bicycle Repair Accessories for Kids/Stretch Bicycle MTB Bicycle Ball Bearings Bike Crank Bottom Bracket

**Brand:** yunmoxiao
**Price:** 9408CFA
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your ride’s heartbeat with precision and power!

## Quick Answers

- **What is this?** 4Pcs Bike Ball Bearing Retainer Replacement Mountain Bike Parts 1/4 inch x 9 Balls Bicycle Repair Accessories for Kids/Stretch Bicycle MTB Bicycle Ball Bearings Bike Crank Bottom Bracket by yunmoxiao
- **How much does it cost?** 9408CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/338487625-4pcs-bike-ball-bearing-retainer-replacement-mountain-bike-parts-1)

## Best For

- yunmoxiao enthusiasts

## Why This Product

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

## Key Features

- • **Complete 4-Piece Set:** Includes 4 retainers with 9 balls each—two for immediate use, two as spares to keep you rolling.
- • **Versatile Compatibility:** Perfect for mountain, kids, lowrider, and stretch bikes—upgrade any ride effortlessly.
- • **DIY Friendly Maintenance:** Easy to install with recommended grease application—save time and avoid costly repairs.
- • **Precision Engineered Fit:** Exact 1.14-inch outer diameter ensures seamless crank integration for smooth rides.
- • **Durable Alloy Steel Construction:** Crafted from high-intensity steel for long-lasting performance and resistance to wear.

## Overview

This 4-piece bike ball bearing retainer set features 1/4-inch steel balls housed in durable alloy steel cages with a 1.14-inch outer diameter. Designed for mountain, kids, lowrider, and stretch bicycles, it offers a reliable, easy-to-install solution to replace worn crank bearings, ensuring smoother, quieter rides and extended bike longevity.

## Description

Are you looking for bearing repair accessories for your bicycle? This ball bearing retainer repair accessories just designed for you! Dimensions and specifications OUTER DIAMETER: 1.14 inch/29mm, INNER DIAMETER: 0.7 inch/18.4mm, BALL DIAMETER: 1/4 inch. Please confirm the size before purchase!!!!!!! Widely usage: This bearings for bicycle crank, bike crank, lowlander bikes, beach cruiser, limos, stretch bicycles. Every 29mm cage has 9 6.39mm balls. With this ball bearing retainer, you can replace your bike parts by yourself in home. Keep your bike away from abnormal noises, runs more smoothly Perfect supply for bicycle enthusiasts and an essential parts for bike. Note: 1. Apply a small amount of grease before installation。 2. In order to protect the Retainer, it is normal to have a little grease on the Retainer. 3.Please allow 0-1mm error due to manual measurement. Package includes: 4 x Bicycle Ball Bearing Retainer.

Review: Perfect for adults mountain bike - Needed some new bearings for my mountain bike I ordered this product and it was perfect for the job
Review: Worked fine and great value - Worked fine and great value, no complaints

## Features

- Material: This ball bearing retainer made of steel, high quality, durable and high intensity.
- Package Include:4 Pieces Bicycle Crank Bearing 1/4" ball size x 9 balls. One pair of crank bearings for replacements, another for spare.
- Bearing Size:OUTSIDE DIAMETER: 1.14 inch/29mm, INSIDE DIAMETER: 0.7 inch/18.4mm, BALL SIZE: 1/4 inch x 9 balls.Please confirm the size before purchase!!!!!!!
- Widely usage: This beads rack for bike parts replacement, suitable for ordinary bicycles, mountain bikes, mongose bicycle, lowrider bike, stretch bicycle, kids bike. Note: If you receive a 6-ball bearing retainer, they are the same product, have the same size and use. It does not affect the use of.Because they are updating iterative relationships.
- Widely usage:This ball bearing retainer for bike parts replacement, suitable for bicycle crank, such as: mountain bike, kids bicycle, lowrider bike,children’s bike, stretch bicycles.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B097H2GF2B |
| Bearing Number | 4 |
| Bearing Type | Ball Bearing |
| Bearing number | 4 |
| Best Sellers Rank | 35,416 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 2,364 in Bike Components & Parts |
| Brand | Yunmoxiao |
| Compatible Lubricant | Grease |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 169 Reviews |
| Item Dimensions | 39 x 29 x 29 millimetres |
| Item Thickness | 1 Millimetres |
| Item Weight | 40 Grams |
| Item dimensions L x W x H | 39 x 29 x 29 millimetres |
| Item thickness | 1 Millimetres |
| Item weight | 40 Grams |
| Manufacturer | Yunmoxiao |
| Material | Alloy Steel |
| Outside Diameter | 1.14 Inches |
| Specification Met | ISO 355 |
| UPC | 191892348209 |

## Product Details

- **Bearing number:** 4
- **Brand:** Yunmoxiao
- **Item dimensions L x W x H:** 39 x 29 x 29 millimetres
- **Item weight:** 40 Grams
- **Material:** Alloy Steel

## Images

![4Pcs Bike Ball Bearing Retainer Replacement Mountain Bike Parts 1/4 inch x 9 Balls Bicycle Repair Accessories for Kids/Stretch Bicycle MTB Bicycle Ball Bearings Bike Crank Bottom Bracket - Image 1](https://m.media-amazon.com/images/I/61WK5uqfCuS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for adults mountain bike
*by L***S on 19 May 2026*

Needed some new bearings for my mountain bike I ordered this product and it was perfect for the job

### ⭐⭐⭐⭐⭐ Worked fine and great value
*by W***H on 11 September 2024*

Worked fine and great value, no complaints

### ⭐⭐⭐⭐⭐ Does the job
*by B***Y on 7 August 2025*

Works fine on my tricycle bottom bracket.

## Frequently Bought Together

- 4Pcs Bike Ball Bearing Retainer Replacement Mountain Bike Parts 1/4 inch x 9 Balls Bicycle Repair Accessories for Kids/Stretch Bicycle MTB Bicycle Ball Bearings Bike Crank Bottom Bracket
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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-21*