---
product_id: 308045019
title: "YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue)"
brand: "ybeki"
price: "$40"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/308045019-ybeki-pro-grade-104bcd-chainring-30-52t-cnc-7075-t6
store_origin: NZ
region: New Zealand
---

# DynamicChain 3.0 anti-drop tech, 92% fewer chain drops 7075-T6 aerospace-grade aluminum, 572MPa tensile strength 3D hollow design, 63% lighter than steel YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue)

**Brand:** ybeki
**Price:** $40
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your ride with pro-grade precision and featherlight power!

## Quick Answers

- **What is this?** YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue) by ybeki
- **How much does it cost?** $40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/308045019-ybeki-pro-grade-104bcd-chainring-30-52t-cnc-7075-t6)

## Best For

- ybeki enthusiasts

## Why This Product

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

## Key Features

- • **Aerospace-Grade Strength:** Crafted from 7075-T6 aluminum alloy with 572MPa tensile strength for unmatched durability and performance.
- • **Next-Level Chain Security:** DynamicChain 3.0 narrow-wide tooth profile reduces chain drops by 92%, keeping you riding smooth on any terrain.
- • **Featherlight Power Transfer:** 3D hollow architecture slashes weight by 63%, boosting climbing agility without sacrificing stiffness or efficiency.
- • **Biomechanical Oval Efficiency:** Lab-validated 15% pedaling efficiency gain and 18% less knee strain with optimized 12° ovality for race and enduro modes.
- • **Lifetime Durability & Support:** Military-grade anodization resists wear 3x longer, backed by a zero-rust lifetime guarantee and 24/7 expert US-based support.

## Overview

The YBEKI Pro-Grade 104BCD Chainring is a CNC-machined, aerospace-grade 7075-T6 aluminum bike chainwheel designed for Shimano/SRAM 8-11 speed MTB and road bikes. Featuring DynamicChain 3.0 anti-drop technology, a 3D hollow lightweight structure, and biomechanical oval design, it delivers superior strength (572MPa), 92% fewer chain drops, 15% improved pedaling efficiency, and 63% weight reduction compared to steel. Finished with military-grade anodization and backed by a lifetime durability guarantee, it’s engineered for high-performance cycling with unmatched reliability.

## Description

Full description not available

## Features

- 1.🔧【Aerospace-Engineered 7075-T6 Alloy】7075-T6 Aluminum Alloy - 572MPa tensile strength (30% stronger than 6061), ✓ 5-Axs CNC Machined - ±0.01mm tooth tolerance (ISO 13041 certified), ✓ Military-Grade Hard Anodization - HV800 surface hardness (3x wear resistance), ✓ Compatibility: Compatible with 104BCD Single Bike Chainring Shimano/SRAM 8-11 Speed MTB/Road Bikes
- 2. ⚡【DynamicChain 3.0 Anti-Drop System】Alternating Narrow-Wide Tooth Profile (7.3mm wide / 6.8mm narrow teeth) perfectly matches 8-11 speed chain pitches.✓ Dynamic Chamfer Technology enables 45% faster chain engagement, tested to reduce chain drops by 92% on rough terrain.✓ Extended Tooth Tips enhance stability, ideal for high-impact MTB rides and aggressive road cycling
- 3. 🚀【3D Ultra-Lightweight Architecture】3D Hollow Structure cuts weight by 63% compared to steel, achieving a featherlight profile without compromising strength.▸ Asymmetric Reinforcement Ribs deliver 155Nm/deg lateral stiffness, ensuring power transfer efficiency up to 98.7%.▸ 1kg Total Weight Reduction for your bike, boosting climbing performance and overall agility
- 4. 🌧️【Biomechanical Oval Advantage】✓ Lab-Proven Efficiency Boost:▶ 15% pedaling efficiency increase vs round chainrings (University of Colorado validated)▶ 12° optimal ovality (reduces knee strain by 18%)✓ Dual-Performance Profiles: ➤ Race Mode: 90+ RPM cadence optimization➤ Enduro Mode: Enhanced torque output (60-80 RPM). Mirror-Polished Teeth (0.09μ ultra-low friction coefficient) minimize energy loss during pedaling.✓ Self-Cleaning Grooves reduce mud accumulation by 70%, maintaining peak performance in wet or dirty conditions.
- 5.💎【Lifetime Durability Guarantee】12-Month "Zero Rust" Promise – Free replacement if oxidation occurs, 24/7 Expert Support – US-based mechanics answer questions within 24 hours, Fast Replacement: Defective parts replaced within 48 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Load Capacity | 82756 pounds-force (tensile) |
| Brand | YBEKI |
| Strand Type | Single |
| Specification Met | ANSI B29.1 |
| Item Length | 41.3 Inches |
| UPC | 788392320592 |
| Item Package Dimensions L x W x H | 9.61 x 7.72 x 0.47 inches |
| Package Weight | 0.1 Kilograms |
| Brand Name | YBEKI |
| Color | Black Oval 34T |
| Manufacturer | YBEKI |
| Part Number | Y92 |
| Size | 34T |

## Product Details

- **Load Capacity:** 82756 pounds-force (tensile)
- **Brand:** YBEKI
- **Strand Type:** Single
- **Specification Met:** ANSI B29.1
- **Item Length:** 41.3 Inches

## Images

![YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue) - Image 1](https://m.media-amazon.com/images/I/711zgBBepOL.jpg)
![YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue) - Image 2](https://m.media-amazon.com/images/I/516FK7c3zvL.jpg)
![YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue) - Image 3](https://m.media-amazon.com/images/I/61uBz9oNWcL.jpg)
![YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue) - Image 4](https://m.media-amazon.com/images/I/71RYDPvJoCL.jpg)
![YBEKI Pro-Grade 104BCD Chainring (30-52T) CNC 7075-T6 Aluminum Narrow-Wide MTB/Road Round Oval Bike Chainwheel | Shimano/SRAM 8-11 Speed Compatible | 573MPa Strength(Black/Red/Blue) - Image 5](https://m.media-amazon.com/images/I/61DuUrXCnmL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ excellent upgrade to a 20 year old crank and value
*by T***Y on May 25, 2025*

This review is for a YBEKI Pro-Grade 104 BCD narrow-wide 30 tooth chainring (red) ordered 2025-05-21 and received 2025-05-22. I paid $13.34 USD including free Amazon Prime shipping and 9.25% state and local sales taxes.Perfect fit on my 2004 Truvativ Hollzfeller RG crankset, the inside diameter of the YBEKI chainring has minimal clearance to the spider and almost exactly the same contour.Mine was packaged with 8mm long chainring bolts and "nuts". The nuts are superfluous and unusable as they are integrated into the chainring, probably because the small diameter of the 30T ring does not leave enough material for a hole large enough for the traditional female portion of the chainring fastener.I'm using an 8-speed chain so I don't seem to get the chain retention benefit of the narrow-wide tooth pattern but I have a chain retention device so No Big Deal and certainly not the manufacturer's fault.I am so pleased that I ordered another one for a spare while available and before tariffs and inflation kick in.5 stars for now, will update if any reason to knock that down.

### ⭐⭐⭐⭐⭐ Great chainring to balance climbing and speed
*by A***R on May 19, 2025*

Converted a 2x9 to a 1x12 (11-50T) and originally had a 32-T chainring. Could not generate enough power with it. Swapped it for this 40-T chainring and now it flies, at least for a hybrid bike; it will never win any races. But it still climbs great to thanks to the 0.80:1 gear ratio when on the 50-T ring on the cassette.If you’re looking for a 1x10 or 1x12 conversion, or just to get a little more power out of your mtb, this is a great option!

### ⭐⭐⭐⭐ Nice quality
*by W***  on October 22, 2024*

Very good big gear it wouldn't work on my unit because it's a cheapo and was riveted with look like torx head screwd but were rivets. Serious a$$..le engineering. So I ended up changing the rear gear set.

## Frequently Bought Together

- YBEKI 30T 32T 34T 36T 38T 40T 42T 44T 46T 48T 50T 52T Chainring 104BCD Round Oval Narrow Wide Single Bike Chainring for 8 9 10 11 Speed Mountain Bike Road Bike MTB BMX
- 104BCD Chain Ring Chainring Spider Adapter for BAFANG 8Fun BBS01 BBS02 BBSHD E-Bike Mid Drive Motor

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-03*