---
product_id: 3502358
title: "SG-8S31 Alfine/Nexus small parts kit"
brand: "shimano"
price: "¥7899"
currency: JPY
in_stock: true
category: "Shimano"
url: https://www.desertcart.jp/products/3502358-sg-8s31-alfine-nexus-small-parts-kit
store_origin: JP
region: Japan
---

# Non-turn washers for secure fit 3 precision small parts Includes cassette joint CJ-8S20 SG-8S31 Alfine/Nexus small parts kit

**Brand:** shimano
**Price:** ¥7899
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your ride with the ultimate Alfine 8S small parts kit!

## Quick Answers

- **What is this?** SG-8S31 Alfine/Nexus small parts kit by shimano
- **How much does it cost?** ¥7899 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/3502358-sg-8s31-alfine-nexus-small-parts-kit)

## 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

- • **Durable copper finish:** Brushed copper parts built to last and resist wear
- • **Trusted Shimano quality:** Top-rated by cyclists for reliability and performance
- • **Complete installation kit:** Cap nuts, cog snap-ring & cassette joint all-in-one
- • **Non-turn washers included:** Ensures stable vertical and horizontal dropout mounting
- • **Precision-engineered small parts:** 3 essential components for flawless Alfine 8S hub installation

## Overview

The Shimano SG-8S31 Alfine/Nexus small parts kit includes three precision components—non-turn washers for vertical and horizontal dropouts, cap nuts, a cog snap-ring, and the CJ-8S20 cassette joint—designed to ensure a secure, durable installation of Alfine 8-speed internally geared hubs. Finished in brushed copper, this kit is a must-have for professional cyclists seeking reliable performance and longevity.

## Description

Internally Geared Hub Small Parts Kits Includes non-turn washers for vertical dropouts (8R/8L) & horizontal dropouts (6R/6L), cap nuts, cog snap-ring & CJ-8S20 cassette joint. Does

## Features

- Required for installation of Alfine 8S IGH hubs.
- Kit includes
- NON TURN WASHERS FOR VERTICAL DROP OUTS
- CAP NUT
- CASSETTE JOINT (CJ-8S20)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002MKFPXI |
| Best Sellers Rank | #154,340 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #46 in Bike Hubs |
| Brand | SHIMANO |
| Color | Black |
| Compatible Groove Diameter | 1.4 inches |
| Customer Reviews | 4.6 4.6 out of 5 stars (86) |
| Fastener Type | Flat Washer |
| Finish Types | Brushed/Copper |
| Global Trade Identification Number | 00689228272873 |
| Item Shape | Non-round |
| Item Weight | 0.27 g |
| Manufacturer | Shimano |
| Material Type | Copper |
| Model | 144090 |
| Number Of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 3 |
| Outside Diameter | 1.5 inches |
| Part Number | HU4351 |
| Screw Head Style | Square Taper |
| Set Name | Shimano Alfine 8S Small Parts Kit |
| Size Name | 1.5 inches |
| Thread Size | 1.4 inches |
| UPC | 689228272873 |

## Product Details

- **Brand:** SHIMANO
- **Color:** Black
- **Fastener Type:** Flat Washer
- **Material:** Copper
- **Size:** 1.5 inches

## Images

![SG-8S31 Alfine/Nexus small parts kit - Image 1](https://m.media-amazon.com/images/I/61MNtKG99ML.jpg)

## Frequently Bought Together

- Shimano SG-8S31 Alfine/Nexus small parts kit
- SHIMANO Alfine & Nexus hub Shift Cable Fixing Bolt Unit
- Shimano SG-3C40 Nexus Sprocket (18T)

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-08*