---
product_id: 8757063
title: "Shimano SG-3C40 Nexus Sprocket (18T)"
price: "S/.94"
currency: PEN
in_stock: true
reviews_count: 6
url: https://www.desertcart.pe/products/8757063-shimano-sg-3c40-nexus-sprocket-18t
store_origin: PE
region: Peru
---

# Compact Dimensions Lightweight Design 18T Gear Size Shimano SG-3C40 Nexus Sprocket (18T)

**Price:** S/.94
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Gear Up for Greatness!

## Quick Answers

- **What is this?** Shimano SG-3C40 Nexus Sprocket (18T)
- **How much does it cost?** S/.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/8757063-shimano-sg-3c40-nexus-sprocket-18t)

## Best For

- Customers looking for quality international products

## Why This Product

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

## Key Features

- • **Chain Flexibility:** Compatible with both 1/8" and 3/32" chains for ultimate versatility.
- • **Durable Performance:** Designed for long-lasting performance, ensuring smooth rides.
- • **Compact & Lightweight:** Weighs only 22.68g, making it a breeze to install and use.
- • **Precision Engineering:** Crafted by Shimano, a trusted name in cycling innovation.
- • **Versatile Compatibility:** Fits any 3-tabbed coaster brake or internally geared hub.

## Overview

The Shimano SG-3C40 Nexus Sprocket (18T) is a high-quality, lightweight sprocket designed for versatility and durability. It fits any 3-tabbed coaster brake or internally geared hub and is compatible with both 1/8" and 3/32" chains. Weighing just 22.68g, this sprocket is engineered for precision and performance, making it an essential component for any cycling enthusiast.

## Description

Shimano Alfine and nexus cogs work with either a 1/8 or 3/32 chain. Will also fit any 3 tabbed coaster brake or internally gear hub.

Review: quality sprocket - I bought a cruiser bike with a KT coaster brake and KT sprocket. The sprocket was warped and the shape of the teeth was primitive. It was not meshing properly with the chain and making lots of loud ugly noises. The Shimano sprocket was a perfect replacement and everything is working quietly and smoothly.
Review: Four Stars - good

## Features

- Will also fit any 3 tabbed coaster brake or internally gear hub
- Will work with either 1/8" or 3/32" chains
- Shimano Reference Number: SG-3R40

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 3 x 3 x 0.1 inches |
| Package Weight | 22.68 g |
| Item Dimensions  LxWxH | 2.75 x 2.75 x 0.25 inches |
| Item Weight | 0.01 Ounces |
| Brand Name | SHIMANO |
| Number of Items | 1 |
| Manufacturer | Shimano |
| Part Number | Y32203420 |
| Size | 18T |

## Images

![Shimano SG-3C40 Nexus Sprocket (18T) - Image 1](https://m.media-amazon.com/images/I/917HPmRy6zL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ quality sprocket
*by E***L on July 1, 2023*

I bought a cruiser bike with a KT coaster brake and KT sprocket. The sprocket was warped and the shape of the teeth was primitive. It was not meshing properly with the chain and making lots of loud ugly noises. The Shimano sprocket was a perfect replacement and everything is working quietly and smoothly.

### ⭐⭐⭐⭐ Four Stars
*by L***G on January 21, 2015*

good

### ⭐⭐⭐⭐⭐ Great
*by S***Y on June 25, 2014*

This was one of my early purchases and got me off to a good start delivery on time part perfect cannot fault it everything good, can recommend product and company.

## Frequently Bought Together

- Shimano SG-3C40 Nexus Sprocket (18T)
- Shimano SG-8S31 Alfine/Nexus small parts kit
- SHIMANO Nexus 16 Tooth cog, Black

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**Shop now:** [https://www.desertcart.pe/products/8757063-shimano-sg-3c40-nexus-sprocket-18t](https://www.desertcart.pe/products/8757063-shimano-sg-3c40-nexus-sprocket-18t)

---

*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-27*