CAMPAGNOLO PAT78 Sr Rear Derailleur

( Brand: Campagnolo ), ( Manufacturer Part Number: PAT78 ), ( Type: Derailleurs ), ( Vintage: Yes ), ( For Bike Type: Racing Bike )

Review CAMPAGNOLO Vtg Sr Rear Derailleur

The **Campagnolo Pat78 VTG SR Rear Derailleur** is a meticulously crafted, time-honored component that embodies the legendary precision and Italian engineering that Campagnolo has been synonymous with since its inception. Hailing from the iconic **Patria** series, this derailleur was originally designed in the late 1970s as part of Campagnolo s high-performance road and racing lineup, and its **VTG (Vintage Technology)** iteration is a faithful reproduction of the original, now sought after by collectors and enthusiasts alike. The **SR (Super Record)** variant represents the pinnacle of Campagnolo s derailleur technology at the time, featuring an ultra-lightweight construction, razor-sharp shifting, and an elegant, minimalist design that remains timeless. Crafted from high-grade aluminum alloy, the derailleur boasts a robust yet refined frame, with a **double-butted design** that optimizes strength while minimizing weight a hallmark of Campagnolo s attention to detail. The **pivot system** is a study in engineering finesse, utilizing precision-machined bushings and a **dual-pivot design** that ensures smooth, consistent shifting even under the most demanding conditions. The **jockey wheels** are made from hardened steel, polished to a mirror-like finish, and feature Campagnolo s signature **low-friction bearings** that reduce wear and enhance durability, a quality that has made these derailleurs legendary among cyclists who demand nothing less than perfection. The **SR model** distinguishes itself further with its **ultra-compact profile**, allowing it to nestle neatly against the frame even on tight-fitting bikes, while the **adjustable limit screws** provide fine-tuned control over derailleur tension and cable pull, ensuring crisp, predictable shifts every time. The **branding** is a work of art in itself, with the **Campagnolo logo** and **"Patria"** inscription etched into the frame in a classic, slightly weathered finish that speaks to its vintage heritage. Whether installed on a modern build or paired with an original 1970s-era Campagnolo drivetrain, this derailleur is a testament to Campagnolo s enduring legacy blending raw performance with aesthetic elegance in a way that continues to inspire both purists and innovators. For the discerning cyclist, it is not merely a component but a piece of cycling history, a relic of an era when Italian craftsmanship reigned supreme.

The Campagnolo Super Record (SR) Pat78 VTG (Vintage) rear derailleur is a sought-after component among cycling enthusiasts, particularly those interested in classic Italian bike parts. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Campagnolo Pat78 VTG SR Rear Derailleur**

1. **Historical and Collectible Value**

The Pat78 was Campagnolo s flagship derailleur in the late 1970s, representing the pinnacle of Italian engineering at the time. Owning a vintage SR part adds aesthetic and sentimental value, especially for collectors or riders who appreciate cycling heritage.

2. **Superior Build Quality and Materials**

The Pat78 was constructed with high-grade materials, including forged aluminum for the frame and hardened steel for the jockey wheels. This resulted in a robust, durable derailleur that could withstand heavy use, even by today s standards.

3. **Precision Engineering and Performance**

Campagnolo s hydraulic-like shifting (via the Record Group s internal mechanism) was revolutionary for its time. The Pat78 s shifting was smooth and reliable, often outperforming contemporary mechanical derailleurs from other brands. The design minimized chain slap and provided tight shifting margins.

4. **Aesthetic Appeal**

The Pat78 s design is iconic, with its clean lines, polished aluminum, and Campagnolo s signature branding. It exudes a timeless elegance that many riders find visually appealing, making it a desirable component for custom builds or restorations.

5. **Compatibility with Modern Bikes (With Modifications)**

While the Pat78 is designed for 10-speed cassettes (common in the late 1970s), it can be adapted to work with modern 11-speed or 12-speed setups through the use of spacers, longer cage lengths, or aftermarket solutions. This extends its usability beyond vintage bikes.

6. **Rarity and Exclusivity**

Due to its age and the fact that Campagnolo discontinued the SR Group in the late 1970s, authentic Pat78 derailleurs are hard to find. This rarity can drive up their value in the secondary market, making them a unique investment.

7. **Compatibility with Other Vintage Campagnolo Parts**

The Pat78 integrates seamlessly with other Campagnolo SR components, such as shifters, cranks, and bottom brackets, allowing for a fully vintage Campagnolo setup. This cohesion enhances the riding experience and the bike s historical authenticity.

8. **Potential for Restoration and Upgrades**

The Pat78 can be restored to near-new condition with proper cleaning, lubrication, and part replacement (e.g., bearings, springs, or jockey wheels). Some riders also opt to modernize certain aspects, such as replacing the stock springs with stiffer ones for improved shifting performance.

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### **Cons of the Campagnolo Pat78 VTG SR Rear Derailleur**

1. **Age-Related Wear and Maintenance**

As a vintage component, the Pat78 may exhibit signs of wear, such as rust, pitting on the aluminum frame, or degraded bearings. This requires regular maintenance, including cleaning, lubrication, and potential part replacements. Neglect can lead to shifting issues or mechanical failures.

2. **Limited Availability of Spare Parts**

While Campagnolo still produces some vintage-style parts, finding exact replacements for the Pat78 (e.g., specific springs, pins, or jockey wheels) can be challenging. This may necessitate sourcing parts from third-party vendors or repurposing parts from other vintage Campagnolo derailleurs.

3. **Compatibility Issues with Modern Cassettes**

The Pat78 is designed for 10-speed cassettes, which are no longer standard on most modern bikes. While it can be adapted to work with 11-speed or 12-speed setups, this often requires modifying the cage length or using spacers, which can affect shifting performance and chainline alignment. Poor chainline can lead to chain wear or derailleur misalignment.

4. **Higher Cost Relative to Modern Alternatives**

Due to its rarity and collectible status, a genuine Pat78 derailleur can be significantly more expensive than modern derailleurs from brands like Shimano, SRAM, or even Campagnolo s current offerings. For example, a used Pat78 may cost $200 $500 or more, whereas a new Campagnolo Super Record derailleur (e.g., the Centaur or Record) can be had for $150 $300.

5. **Potential for Inconsistent Performance**

Over time, the internal mechanisms of the Pat78 may become less precise due to wear or corrosion. This can result in slightly less consistent shifting compared to modern derailleurs, which are designed with tighter tolerances and more advanced materials.

6. **Weight Considerations**

While the Pat78 is not excessively heavy by modern standards, its forged aluminum construction is slightly heavier than contemporary carbon or lightweight aluminum derailleurs. For riders prioritizing weight savings, this may be a minor drawback.

7. **Learning Curve for Maintenance**

Restoring or maintaining a vintage Campagnolo derailleur requires familiarity with older mechanical systems and potentially specialized tools. Riders unfamiliar with vintage Campagnolo parts may find the process more time-consuming or frustrating than working with modern components.

8. **Ethical and Environmental Concerns**

Purchasing a vintage derailleur contributes to the secondary market for used parts, which can sometimes drive up prices and make these components less accessible to those who genuinely need them for restoration projects. Additionally, the environmental impact of sourcing and restoring vintage parts may be greater than buying new.

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### **Conclusion**

The Campagnolo Pat78 VTG SR rear derailleur is a remarkable piece of cycling history, offering unmatched build quality, shifting precision, and aesthetic appeal. It is ideal for collectors, vintage bike enthusiasts, or riders who prioritize the heritage and craftsmanship of Italian cycling components. However, its age-related challenges such as maintenance requirements, compatibility issues with modern setups, and higher cost make it less practical for everyday use compared to modern derailleurs.

For riders who are passionate about vintage Campagnolo setups and are willing to invest time and effort into maintenance, the Pat78 is a fantastic choice. Conversely, those seeking reliability, ease of use, or compatibility with modern drivetrains may find it more suitable to opt for a contemporary derailleur or a modern vintage-style alternative (e.g., Campagnolo s current Centaur or Record models).

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### **Recommendation**

- You are restoring or building a vintage Campagnolo bike and prioritize authenticity.

- You appreciate the historical significance and craftsmanship of Italian cycling components.

- You are prepared to invest time in maintenance, restoration, and potential modifications to ensure compatibility with modern setups.

- You are a collector or enjoy the challenge of working with classic parts.

- You need a derailleur for daily riding and prioritize reliability, ease of maintenance, and compatibility with modern cassettes.

- You are on a budget, as modern derailleurs offer similar performance at a lower cost.

- You lack experience with vintage Campagnolo parts and are unwilling to learn the necessary maintenance skills.

For those who cannot justify the cost or effort of a Pat78, Campagnolo s current **Centaur** or **Record** derailleurs offer a modern take on the same principles, with improved compatibility and reduced maintenance demands. Alternatively, brands like **Shimano Deore** or **SRAM Apex** provide high-quality, affordable alternatives for riders who want vintage aesthetics without the vintage hassles.

Details:

If anything needs clarification, ask before purchasing. Add this to your watch list as I am known adjust prices and/or make special offers available. Top titanium mounting bolt has a minor scuff, lower one looks fine. Study photos carefully, etc.

Otherwise, in better shape than most of the 45 year old's I know. Pulley wheels are cracked like all of them this era. No attempt to clean it. See my other listings.

If this isn't you, contact me prior. The stupid black plastic CPSC adjustment screw spring shields have cracks, but everyone I knew removed and tossed them. I promptly ship items packed in a manner as would expect to receive them. All the flaws noted are reflected in price.

As handed to me by a friend sell for him. I have had success with 2-part epoxy keeping them alive. My first race bike had a chrome plated brass Record rear meh and 151 BC crank arms. If the make offer button is not enabled, I suggest you wait until it is, if ever, as unsolicited offers are usually ignored.

Any free shipping offer applies to US48 addresses only. The screw slots, hex heads all good. A swanky bit of wear on inner cage could be easily repaired/replaced.

part #: pat78 prices

• $171.39-$491.00

specifications vintagebikepartiz:

• brand: Campagnolo
• mpn: Pat78
• type: Derailleurs
• vintage: Yes
• for bike type: Racing Bike

general vintagebikepartiz:

• Cycling > Vintage Cycling > Vintage Bicycle Parts

seller vintagebikepartiz:

• rating: 100.0%
• # reviews: 1285
• city: Verdi, Nevada

returns vintagebikepartiz:

• policy: No Returns

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offer vintagebikepartiz:

• started: March 3, 2026
• quantity: 1
• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0

shipping vintagebikepartiz:

• carrier: USPS
• class: Standard
• cost: $7.46
• service: USPS Ground Advantage
• transit: 9-13 Days
• type: Calculated

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