SHIMANO CN-7900 Dura Ace Bike Chain Hg Links 4524667272809 10S 108

( Brand: Shimano ), ( Manufacturer Part Number: CN-7900 ), ( Model: DURA-ACE CN-7900 ), ( Part Type: Bike ), ( Number Of Speeds: 10 Speed ), ( Country Of Origin: Japan ), ( UPC: 524667272809 )

Review SHIMANO Dura Ace 10s Bike Chain Super Narrow Hg 108 Links

The **Shimano CN-7900 Dura-Ace 10-Speed Hollow-Gold Chain** represents the pinnacle of performance and precision in modern bicycle drivetrain technology, meticulously engineered for cyclists who demand the utmost in efficiency, durability, and reliability. Crafted from Shimano s legendary **Hollow-Gold (HG) technology**, this chain is designed to deliver unparalleled power transfer with minimal friction, making it an ideal choice for competitive racers, gravel enthusiasts, and serious time trialists who push their bikes to the absolute limit. The **CN-7900 series** builds upon the refined mechanics of its predecessors, featuring a **10-speed configuration** optimized for seamless shifting across Shimano s latest groupsets, including the Dura-Ace Di2 electronic system, where it excels in maintaining consistent engagement and reducing chain slippage even under extreme loads. Each link is forged from **high-grade steel** and treated with a proprietary **low-friction coating**, ensuring reduced wear on both the chain and cassette, which translates to longer component life and fewer maintenance interruptions. The **108-link length** provides ample flexibility for a wide range of frame geometries and wheel sizes, from compact road bikes to endurance-oriented gravel rigs, while its **precision-pinned construction** guarantees smooth operation and resistance to elongation, even after thousands of miles. Whether navigating tight corners at high speed or climbing steep gradients with relentless power, this chain s **aerodynamic design** and **optimized roller profile** minimize drag and maximize efficiency, allowing riders to extract every ounce of performance from their pedaling. For those who refuse to compromise on quality, the **Dura-Ace branding** alone is a testament to Shimano s commitment to innovation, and the **CN-7900 HG chain** stands as a benchmark for what a high-performance drivetrain component should achieve blending cutting-edge engineering with the timeless reliability that Shimano has perfected over decades.

### Pros and Cons of buying a **Shimano CN-7900 Dura-Ace 10-Speed Bike Chain (HG, 108 Links)**

1. **High Performance** The CN-7900 is part of Shimano s premium Dura-Ace lineup, designed for racing and high-end road cycling. It delivers smooth shifting and efficient power transfer, making it ideal for competitive or performance-oriented riding.

2. **Durability and Longevity** Shimano s Dura-Ace components are built with high-quality materials, including hardened steel pins and rollers, which reduce wear and extend the chain s lifespan compared to mid-range or budget options.

3. **Precision Engineering** The chain features a **HyperGlide (HG)** profile, which is optimized for compatibility with Shimano s HG drivetrains (including Dura-Ace, Ultegra, and some 105 models). This ensures smoother shifting and reduced chain slippage.

4. **Lightweight** As a 10-speed chain, it is relatively lightweight compared to older 8/9-speed designs, contributing to better overall drivetrain efficiency.

5. **Compatibility** Works seamlessly with Shimano s Dura-Ace 10-speed groupsets, including the 11-34T cassette range, making it a natural upgrade for existing Dura-Ace setups.

6. **Reliability** Shimano is a trusted brand with a long history of producing reliable components. The CN-7900 is less prone to failure under heavy loads compared to cheaper alternatives.

7. **Resale Value** Dura-Ace components hold their value well, so if you decide to upgrade or sell your bike in the future, this chain will remain desirable.

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1. **Expensive** The CN-7900 is one of the most costly 10-speed chains available, often priced significantly higher than mid-tier options (e.g., Shimano 105 or SRAM Rival). This may not be justified for casual riders or those on a tight budget.

2. **Overkill for Most Riders** Unless you are a competitive racer or a serious enthusiast, the performance gains over a well-maintained **Shimano 105 or Ultegra chain** may not be noticeable. For most recreational cyclists, a slightly cheaper alternative would suffice.

3. **Maintenance Requirements** Like all high-end chains, the CN-7900 requires regular cleaning and lubrication to prevent premature wear. Neglecting maintenance can lead to faster degradation than lower-tier chains.

4. **Limited Use Case** If you plan to mix Shimano and non-Shimano components (e.g., SRAM drivetrains), the HG profile may not be fully compatible, limiting flexibility in future upgrades.

5. **Availability and Lead Times** High-demand components like this can sometimes face stock shortages, especially during peak cycling seasons, leading to delays in purchase or higher prices.

6. **Weight vs. Cost Trade-off** While lightweight, the marginal weight savings over a high-quality mid-range chain may not justify the price difference for most riders.

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The **Shimano CN-7900 Dura-Ace 10-speed chain** is an excellent choice for **serious cyclists, racers, or those upgrading an existing Dura-Ace drivetrain** who prioritize performance, durability, and reliability. Its premium build quality and smooth shifting justify the cost for users who demand the best. However, for **casual or recreational riders**, a **Shimano Ultegra or 105 chain** (or even a well-maintained SRAM equivalent) would offer a better **cost-to-performance ratio** without sacrificing too much in terms of shifting quality.

If you are certain about your commitment to high-end cycling and can afford the investment, the CN-7900 is a **top-tier option**. Otherwise, consider whether the extra expense is truly necessary for your riding needs.

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- You are a competitive racer or serious time-trialist.

- You already own a Dura-Ace groupset and want to maintain consistency.

- You prioritize longevity and performance over cost savings.

- You are a casual or recreational rider opt for a **Shimano Ultegra or 105 chain** instead.

- You plan to mix brands (e.g., SRAM) and need broader compatibility.

- Budget constraints make the CN-7900 impractical look for high-quality mid-range chains that still deliver excellent performance.

Details:

Shimano Dura Ace 10 speed chain. Used condition. 108 links with original pin. Checked with chain tool and it appears to have life left.

part #: cn7900 prices

• $35.00-$171.26

specifications ribicycl:

• brand: Shimano
• mpn: Cn-7900
• model: Dura-ace Cn-7900
• part type: Bike
• number of speeds: 10 Speed
• country of origin: Japan
• upc: 524667272809

returns ribicycl:

• policy: No Returns

payments ribicycl:

• money order
• wallet: Apple-pay
• credit card: Diners-club
• other

offer ribicycl:

• sold: 0
• availability: In Stock
• started: May 12, 2026
• best offers: True
• options: Ship-to-home
• quantity: 1

shipping ribicycl:

• carrier: USPS
• transit: 4-11 Days
• service: USPS Ground Advantage
• class: Standard
• type: Calculated
• cost: $0.00

general ribicycl:

• Cycling > Bicycle Components Parts > Chains
• condition: Used

seller ribicycl:

• # reviews: 233
• city: St. George, Utah
• rating: 100.0%

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