---
product_id: 665108705
title: "104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round)"
brand: "deckas"
price: "A$55"
currency: AUD
in_stock: true
reviews_count: 5
category: "Deckas"
url: https://www.desertcart.com.au/products/665108705-104bcd-40t-42t-44t-46t-48t-50t-52t-narrow-wide
store_origin: AU
region: Australia
---

# 104BCD bolt circle diameter - precise fit for Shimano & SRAM Narrow-wide tooth design - max chain retention & noise reduction 7075 aluminum alloy - ultra durable & lightweight 104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round)

**Brand:** deckas
**Price:** A$55
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Upgrade your ride with precision and power — never miss a pedal stroke!

## Quick Answers

- **What is this?** 104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round) by deckas
- **How much does it cost?** A$55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/665108705-104bcd-40t-42t-44t-46t-48t-50t-52t-narrow-wide)

## Best For

- deckas enthusiasts

## Why This Product

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

## Key Features

- • **Gift-Ready Packaging:** Ideal present for cycling enthusiasts—perfect for holidays, birthdays, or just because you care.
- • **Versatile Size Range:** Available in 40T to 52T sizes to customize your gear ratio and conquer any terrain with confidence.
- • **Lightweight Durability:** Crafted from premium 7075 anodized aluminum alloy for a perfect balance of strength and featherlight performance.
- • **Precision Engineered Fit:** Seamlessly compatible with most 7-12 speed Shimano & SRAM cranksets, ensuring hassle-free upgrades.
- • **Next-Level Chain Retention:** Innovative narrow-wide teeth design drastically reduces chain drops and friction for smoother rides.

## Overview

The DECKAS 104BCD Narrow Wide Chainring is a high-performance single chainring designed for 7 to 12-speed drivetrains. Made from premium 7075 anodized aluminum alloy, it offers exceptional durability and lightweight strength. Its innovative narrow-wide tooth profile enhances chain retention, reduces noise, and minimizes wear, fitting most Shimano and SRAM cranksets with a 104mm bolt circle diameter. Available in multiple sizes from 40T to 52T, it’s the perfect upgrade for road, mountain, BMX, and e-bikes.

## Description

DECKAS Round Oval 104BCD 32T 34T 36T 38T 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12 Speed, Perfect for Most Bicycle Road Bike Mountain Bike BMX MTB Fixie Track Fixed-Gear BicycleMaterial: High quality 7075 aluminum alloy,Anodized surfaceColor: Black,RedRange: 32T,34T,36T,38TCompatibility: 9/10/11 speedSize/BCD: 104BCDWeight: 32T/41g,34T/50g,36T/55g,38T/60gPackage Included:1*104BCD Narrow Wide chainringFeature:1.The new narrow-wide teeth design increases chain retention, wear life, and reduces friction and noise.2.Larger wide tooth design provides maximum ring durability and drop performance.3.Super durable and light weight.4.Excellent Fit and Great Value.5.Easy to install and fits perfectly the 104mm bolt pattern.Installation Notes:1.This chainring's BCD(bolt circle diameter) is 104mm. Before submiting the purchasement, please make sure that your crankset's BCD is 104mm,otherwise they won't fit.2.Most of the cranksets from SHIMANO and SRAM will fit. For cranksets from other brands, please check on the diameter first.

Review: Perfectly made high quality product. Fitted to my Super 73 RXE like a glove. Original was 44 tooth which I replaced with a Deckas 52 tooth. The desired outcome was more range and ability to use the 10 speed efficiently. Highly recommended this product.
Review: Very happy with the service will order again

## Features

- Material: High quality 7075 aluminum alloy,Anodized surface.
- The new narrow-wide teeth design increases chain retention, wear life, and reduces friction and noise, larger wide tooth design provides maximum ring durability and drop performance.
- Suitable for most of Shimano and Sram cranksets, Please confirm that your crank BCD specification is correct before purchase.
- Gift: You may find it a gift option to your husband, wife, boyfriend, girlfriend, or gift for your kids' bike for back to school gift, Christmas gift, Valentine's day gift, Mother's day or Father's day gift, thanksGiving gift or New year gifts, for mountain bike, fat bike or e-bike.
- Package include: 1 x 104BCD narrow wide chainring.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B94GFKKP |
| Batteries Included? | No |
| Best Sellers Rank | #37,302 in Sporting Goods ( See Top 100 in Sporting Goods ) #93 in Bike Drivetrain Components |
| Brand | DECKAS |
| Color | Round Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,667) |
| Date First Available | 18 August 2022 |
| Item model number | 104-Round Black 40T |
| Manufacturer | DECKAS |
| Material Type | Aluminum |
| Outer Material | aluminum-alloy |
| Package Dimensions | 18.39 x 18.29 x 0.79 cm; 91 g |
| Size | 40T Round |

## Product Details

- **Brand:** DECKAS
- **Load capacity:** 3E+2 kg
- **Material:** Aluminum
- **Strand type:** Single

## Images

![104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round) - Image 1](https://m.media-amazon.com/images/I/61UrgOVrhNL.jpg)
![104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round) - Image 2](https://m.media-amazon.com/images/I/713+WjSYolL.jpg)
![104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round) - Image 3](https://m.media-amazon.com/images/I/71EseSzb26L.jpg)
![104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round) - Image 4](https://m.media-amazon.com/images/I/71f-YuPW5LL.jpg)
![104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring Single Chainring for 7/8/9/10/11/12-Speed (Round) - Image 5](https://m.media-amazon.com/images/I/71kU2DNwheL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***D on 17 October 2023*

Perfectly made high quality product. Fitted to my Super 73 RXE like a glove. Original was 44 tooth which I replaced with a Deckas 52 tooth. The desired outcome was more range and ability to use the 10 speed efficiently. Highly recommended this product.

### ⭐⭐⭐⭐⭐ Review
*by B***B on 20 February 2022*

Very happy with the service will order again

### ⭐⭐⭐⭐ Review
*by B***) on 26 April 2024*

GIANT ESCAPE R DISK LTDをシングル化するためラウンド42Tを購入。 クランクはそのまま使用、ボルトも短く加工すればオリジナルを使用出来ました。 (コッタレス抜かなくても付け替え可) ナローワイドなので大丈夫かなとは思いますが、私は念のためチェーン落ち防止デバイスを取付けています。 音は静かな方だと思います。 デザインにセンスを感じないので星ひとつ減らしましたw

## Frequently Bought Together

- DECKAS Round Chainring 104BCD 40T 42T 44T 46T 48T 50T 52T Narrow Wide Chainring for 7 8 9 10 11 12 Speed Chains (Round)
- Park Tool CNW-2 Chainring Nut Wrench
- DECKAS Round Oval Chainring 104BCD 32T 34T 36T 38T Narrow Wide Chainring for 6 7 8 9 10 11 12 Speed Chains

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-26*