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  3. SHIMANO CR-6400

SHIMANO CR-6400 Ultegra Crankset 172.5MM 39/53T

Cr-6400 Shimano Vintage Used Ultegra Crankset 172.5mm 39/53t

( Brand: Shimano ), ( Manufacturer Part Number: CR-6400 ), ( Model: SHIMANO ULTEGRA CR-6400 ), ( Type: Brakes ), ( Color: Silver ), ( For Bike Type: Road Bike Touring ), ( Country Of Origin: Japan ), ( Vintage: Yes )

Review SHIMANO Vintage Used Ultegra Crankset 172.5mm 39/53t

The **Shimano CR-6400 Ultegra Crankset** represents the pinnacle of Shimano s mid-range performance engineering, delivering an exceptional blend of precision, efficiency, and durability for cyclists seeking a refined yet high-performing drivetrain. Designed with a **172.5mm BCD (bolt circle diameter)**, this crankset is optimized for compatibility with a wide range of road and gravel bikes, ensuring seamless integration with Shimano s extensive line of groupsets, from the entry-level to the elite. The **39/53t tooth ratio** offers a versatile gearing setup, striking a balance between climbing efficiency and sprinting power ideal for riders who demand both agility on steep ascents and the ability to surge ahead on flat sections or descents. Crafted from **high-strength aluminum**, the crank arms are engineered to minimize weight while maintaining rigidity, reducing rotational mass for quicker pedal strokes and improved power transfer. The **Ultegra-level quality** is evident in the meticulous machining of the arms, which feature a **smooth, polished finish** to reduce friction and enhance aerodynamics, contributing to a more efficient ride.

At the heart of the CR-6400 is Shimano s **Hollowtech II** bottom bracket system, a hallmark of Ultegra s reliability and performance. This sealed, maintenance-free design ensures longevity by protecting internal components from dirt, moisture, and debris, while the **precisely aligned bearings** provide buttery-smooth rotation, even under heavy loads. The **30mm-wide chainline** further enhances stability and reduces chain wear, making this crankset a durable choice for riders who cover significant mileage or tackle varied terrain. Compatibility with Shimano s **105, Ultegra, and Dura-Ace** shifters and derailleurs ensures seamless integration into existing setups, while the **standard 100mm spindle length** accommodates a broad spectrum of frame designs, from lightweight carbon road bikes to more robust, all-day touring rigs.

For those prioritizing performance without the premium price tag of the top-tier Ultegra or Dura-Ace, the CR-6400 delivers a compelling alternative. Its **shimano-specific design** ensures optimal clearance and smooth operation with Shimano chains and cassettes, reducing the risk of chain drops or derailleur misalignment a common issue when mixing brands. The **39/53t ratio** is particularly well-suited for riders who frequently tackle rolling routes or hilly terrain, offering a tight gear for climbing without sacrificing the ability to spin efficiently on descents or flat stretches. Whether paired with a lightweight road bike or a more utilitarian gravel setup, this crankset elevates the riding experience by combining **Shimano s reputation for precision** with the practicality of a mid-range drivetrain. Ideal for cyclists who demand performance without the luxury of a full Ultegra or Dura-Ace build, the CR-6400 Ultegra crankset is a smart investment for those who want the best of both worlds: reliability, efficiency, and a touch of premium feel.

The **Shimano CR-6400 Ultegra crankset** (172.5mm arm length, 39/53t chainrings) is a mid-range option that balances performance, durability, and cost. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Performance-Oriented Design**

The CR-6400 is part of Shimano s Ultegra family, which prioritizes lightweight construction and efficient power transfer. The **172.5mm arm length** is ideal for road and endurance riding, offering a balance between climbing efficiency and stability. The **39/53t chainring setup** is versatile, suitable for both flat and rolling terrain, though it may feel slightly heavy for aggressive climbers or time trialists.

2. **Durability and Reliability**

Shimano s Ultegra components are known for their robustness, especially in the mid-range CR series. The crankset uses **forged aluminum** for the chainrings and crank arms, which resists wear better than some lower-tier options. The **double-chainring design** reduces the risk of chain drop compared to single-ring systems.

3. **Compatibility and Upgrade Path**

The CR-6400 is compatible with **Shimano s 105 and Ultegra drivetrains**, making it easy to upgrade or pair with other components in the same group. It uses **Hollowtech II bottom bracket standards**, which are widely supported. The **3-bolt chainring mounting** is standard, ensuring easy installation and replacement.

4. **Weight Considerations**

While not as light as the top-tier Ultegra Di2 cranksets, the CR-6400 is significantly lighter than entry-level options like Shimano Sora or Deore. The **forged construction** keeps weight in check without sacrificing strength, making it a practical choice for serious riders who don t need the absolute lightest setup.

5. **Value for Money**

Compared to higher-end Ultegra cranksets (e.g., the Di2 version or the 6800 series), the CR-6400 offers a **cost-effective alternative** with only minor sacrifices in performance. It s a good option for riders who want Ultegra-level quality without the premium price of Di2 or carbon components.

6. **Maintenance and Availability**

Shimano s Ultegra components are widely available, and spare parts (chainrings, crank arms, bottom brackets) are easy to source. The drivetrain is well-supported by mechanics and aftermarket brands, ensuring longevity and ease of repair.

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### **Cons**

1. **Not as Light as Top-Tier Options**

The CR-6400 is heavier than **Ultegra Di2 cranksets** or **carbon cranksets** (e.g., Shimano s 6800 series). While the weight difference may not be noticeable in everyday riding, climbers or racers seeking every gram of efficiency might prefer a lighter setup.

2. **Limited to Mechanical Indexing**

Unlike the Di2 version, the CR-6400 uses **mechanical shifting**, which is less precise and can be slower to adjust compared to electronic shifting. This may be a drawback for riders who prioritize quick, smooth gear changes.

3. **39/53t Chainring Ratio is Narrow**

The **39/53t setup** is a classic ratio that works well for general road riding but may feel **too high for aggressive climbers** or **too low for fast descents**. Riders who prefer a wider range (e.g., 34/50t or 36/50t) might find this setup limiting. Additionally, the **53t large ring** can make pedaling uphill feel harder compared to smaller large rings (e.g., 50t).

4. **No Carbon Construction**

The crankset is made of **forged aluminum**, which is durable but heavier than carbon. Carbon cranksets (e.g., Shimano s 6800 series) offer better vibration dampening and weight savings, though at a higher cost.

5. **Potential for Chain Wear**

While Shimano s Ultegra components are reliable, the **39/53t ratio** can accelerate chain wear over time, especially if ridden in hilly or mixed terrain. Riders who frequently shift into the large ring under heavy load may need to replace chains more often.

6. **Less Aesthetic Appeal**

The CR-6400 has a **more utilitarian design** compared to the sleeker, carbon-fiber look of higher-end Ultegra cranksets. While functionality is prioritized, some riders may prefer the visual appeal of carbon or titanium components.

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### **Conclusion**

The **Shimano CR-6400 Ultegra crankset (172.5mm, 39/53t)** is an excellent choice for riders who want a **high-performance, durable, and cost-effective** drivetrain without the premium price of Di2 or carbon components. It strikes a balance between **weight, reliability, and shifting quality**, making it suitable for **road cycling, endurance riding, and casual to moderate competitive use**.

However, it is **not ideal** for riders who:

- Need **electronic shifting (Di2)** for precision.

- Prefer **carbon construction** for weight savings and vibration dampening.

- Require a **wider gear range** (e.g., for aggressive climbing or downhill riding).

- Prioritize **aesthetics** over pure function.

If your primary needs align with **durability, compatibility, and a solid mid-range performance**, the CR-6400 is a **strong recommendation**. If you re open to spending more for **lighter weight, electronic shifting, or a wider gear range**, consider upgrading to the **Ultegra Di2 6700 or 6800 series** or exploring **carbon cranksets** from brands like Shimano, SRAM, or FSA.

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### **Final Recommendation**

**Buy the Shimano CR-6400 Ultegra crankset if:**

- You want a **reliable, high-quality drivetrain** without the cost of Di2 or carbon.

- You ride mostly on **flat to rolling terrain** and don t need extreme gearing.

- You value **durability, ease of maintenance, and compatibility** with other Shimano components.

- You re on a **budget** but still want Ultegra-level performance.

**Consider alternatives if:**

- You **climb aggressively** and need a lighter crankset or smaller large ring.

- You **prioritize electronic shifting** for smoother, faster gear changes.

- You want **carbon construction** for weight savings and comfort.

- You plan to **race competitively** and need every possible advantage in weight and efficiency.

For most **serious but non-professional riders**, the CR-6400 is a **smart investment** that delivers great value and performance.

Details:

Crank arms are worn as shown. Vintage Used Shimano Ultegra CR-6400 Crankset 172.5mm 39/53T Chain rings are nice.

part #: cr6400 price

  • $39.95

specifications vintagebikepartiz:

  • brand: Shimano
  • mpn: Cr-6400
  • model: Shimano Ultegra Cr-6400
  • type: Brakes
  • color: Silver
  • for bike type: Road Bike Touring
  • country of origin: Japan
  • vintage: Yes

shipping vintagebikepartiz:

  • cost: $7.52
  • carrier: USPS
  • type: Calculated
  • service: USPS Ground Advantage
  • transit: 5-11 Days
  • class: Standard

offer vintagebikepartiz:

  • started: April 17, 2026
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • availability: In Stock

seller vintagebikepartiz:

  • city: Milwaukee, Wisconsin
  • # reviews: 2064
  • rating: 100.0%

returns vintagebikepartiz:

  • time: 30 Days
  • paid by: Buyer
  • method: Money back
  • policy: Returns Accepted

general vintagebikepartiz:

  • Cycling > Vintage Cycling > Vintage Bicycle Parts

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type: brakes, for bike type: road bike touring, country of origin: japan, vintage: yes,
category: sporting goods > cycling > vintage cycling > vintage bicycle parts, color: silver, sku: 7652582840513861,
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1 offer $39.95 USD
  • Offer #1 priced at $39.95 + $8.13 shipping estimate = $48.08* total. Crank arms are worn as shown.+$8.13 shipping

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