SHIFT BJR-4295 Fork Shaft Bjr

( Brand: Shift ), ( Manufacturer Part Number: BJR-4295 ), ( Part Type: Fork Shaft ), ( Machine Type: Motorcycle ), ( Oe/oem Part Number: 13140-1008 13129-056 49047-5003 ), ( Color: Silver ), ( Material: Steel ), ( Vintage Part: Yes ), ( Compatible Year: 1976 1979 ), ( Placement On Vehicle: Front ), ( Country Of Origin: United States )

Review SHIFT Bjr#4295 Kawasaki Forks Low output Fork Shaft fits TWIN KZ 750 1976–1979

The **Kawasaki KZ750 Twin (BJ-R4295)** from the late 1970s specifically the 1976 to 1979 models represents a rare and highly sought-after piece of motorcycle history, blending raw performance with a distinctive, aggressive aesthetic that defined the era of high-revving, twin-cylinder sportbikes. At its core, this machine is a testament to Kawasaki s engineering prowess during the golden age of Japanese motorcycle innovation, when manufacturers were pushing the boundaries of speed, handling, and mechanical sophistication. The **KZ750 Twin** was a direct competitor to the legendary Honda CB750 and Yamaha XS750, offering a more aggressive riding position, a higher-revving twin-cylinder engine, and a design that was both futuristic and intimidating for its time. The **1976 1979 models** are particularly notable for their evolution in styling and mechanical refinements, with the later iterations featuring subtle yet meaningful updates that enhance both ride quality and visual appeal.

The heart of the KZ750 lies in its **748cc air-cooled, parallel-twin engine**, a powerplant that was revolutionary for its time. With a **7:1 compression ratio** and a **single carburetor** (often a Mikuni or Dell Orto), this engine produces a **smooth yet punchy** mid-range torque and a **high-revving, throaty exhaust note** that is instantly recognizable to enthusiasts. The **twin-cam design** with individual valves per cylinder ensures efficient combustion, while the **wet sump lubrication system** and **pressure-lubricated crankshaft bearings** contribute to durability and reliability qualities that make these engines capable of enduring modern modifications with relative ease. The **low-output fork shaft** variant of the KZ750, particularly from the **1976 1979 production run**, is a key detail that sets it apart from later models. This refers to the **original, stock fork shafts** used in the early iterations of the bike, which were designed for a slightly softer, more forgiving ride compared to the stiffer, more aggressive forks introduced in later years. These shafts are often sought after by purists who appreciate the bike s original character, as they contribute to a **smoother, more compliant handling** that was more in line with the era s emphasis on comfort without sacrificing performance.

The **chassis and suspension** of the 1976 1979 KZ750 Twin are equally compelling, embodying the **aerodynamic yet aggressive** design language of the late 1970s. The bike features a **steel double-cradle frame** with a **top-down exhaust header**, a design choice that not only improved heat dissipation but also contributed to the bike s distinctive, forward-leaning silhouette. The **telelever front suspension** (a precursor to modern designs) and **dual shocks at the rear** provide a **balanced ride**, with the **low-output fork shafts** offering a slightly softer action that absorbs road imperfections with grace. The **300mm front disc brake** (with a single-piston caliper) and **drum brake at the rear** were standard for the era, though they are easily upgraded for modern safety standards. The **wide, aggressive seating position** and **high handlebars** give the KZ750 a **sporty, competitive stance**, making it feel like a true road racer despite its touring-friendly ergonomics.

Visually, the **1976 1979 Kawasaki KZ750 Twin** is a **striking blend of angularity and fluidity**, with its **sweeping fuel tank**, **sharp fairings**, and **exposed valve covers** that hint at the mechanical soul beneath. The **chrome accents**, including the **handlebar clamps, exhaust headers, and wheel rims**, add a touch of classic elegance, while the **blacked-out components** and **two-tone paint schemes** (common in later models) offer a more modern contrast. The **original paintwork**, whether in **Metallic Blue, Racing Red, or Gunmetal Gray**, often retains a **vintage patina** that adds to its character, especially on bikes that have been well-preserved. The **exhaust headers**, which route the twin cylinders exhaust gases in a **dual-outlet configuration**, produce a **deep, growling exhaust note** that is both iconic and exhilarating, a sound that has become synonymous with the KZ750 s legacy.

For collectors and riders alike, the **1976 1979 Kawasaki KZ750 Twin with low-output fork shafts** is more than just a motorcycle it is a **piece of automotive history** that embodies the spirit of the **Japanese motorcycle revolution**. This bike was not just a means of transportation; it was a **statement of intent**, a machine that pushed the limits of what was possible in the late 1970s. The **low-output fork shafts** in particular add a layer of authenticity and charm, offering a **softer, more forgiving ride** that was characteristic of the era s emphasis on **comfort without compromising performance**. Whether used as a **daily cruiser**, a **track-day warrior**, or a **showpiece in a vintage collection**, the KZ750 Twin stands as a **timeless icon**, its **raw power, distinctive design, and mechanical integrity** ensuring that it remains as relevant today as it was nearly five decades ago. For those who appreciate the **artistry of motorcycle engineering**, the **KZ750 Twin** is a **must-have**, a machine that continues to captivate with its **unmatched blend of style, speed, and soul**.

### **Pros and Cons of Buying a 1976 1979 Kawasaki KZ750 with Twin Forks and Low-Output Fork Shaft**

#### **Pros**

1. **Classic Design and Nostalgia** The KZ750 is an iconic motorcycle from the golden era of Japanese bikes, prized for its timeless styling and cultural significance. Many enthusiasts appreciate its retro appeal and the sense of history it carries.

2. **Reliable Engine** The 750cc parallel-twin engine is well-regarded for its durability and smooth power delivery, especially in the lower-output versions. With proper maintenance, it can easily last 50,000 100,000 miles or more.

3. **Modularity and Upgrade Potential** The KZ750 platform is highly modifiable. The twin-fork setup (a later upgrade from the original telescopic forks) improves handling, and the low-output fork shaft (a performance modification) can enhance suspension tuning. Many aftermarket parts, from carburetors to exhaust systems, are readily available.

4. **Good Fuel Economy for Its Class** Compared to modern sportbikes, the KZ750 offers decent fuel efficiency, typically averaging around 40 50 mpg, making it practical for daily riding.

5. **Strong Secondary Market** Due to its popularity, parts and restoration services are widely available, and finding a used example is relatively straightforward. Clubs and forums (like the *Kawasaki KZ Owners Club*) provide support for owners.

6. **Comfortable Riding Position** The upright seating position and relaxed ergonomics make it suitable for long rides, though it lacks the aggressive sportbike feel of later models.

7. **Lower Cost of Ownership** Compared to modern bikes, insurance, fuel, and maintenance costs are generally lower. A well-maintained KZ750 can be a budget-friendly alternative to newer machines.

---

#### **Cons**

1. **Outdated Safety Features** The KZ750 lacks modern safety advancements such as ABS, traction control, or advanced braking systems. Its braking setup (typically a single disc or drum brakes) is less effective than contemporary standards, increasing the risk of accidents at higher speeds.

2. **Poor Handling Compared to Modern Bikes** While the twin-fork setup improves stability over the original telescopic forks, the KZ750 still feels heavy and less nimble than modern sportbikes or even later Japanese twins (e.g., the Z1 or later GS models). Cornering performance is adequate but not sharp.

3. **Maintenance Requirements** The engine and drivetrain, while robust, require regular upkeep. Points ignition (in older models) can be finicky, and carburetors may need frequent cleaning or tuning. Rust and wear on the frame and suspension are common issues, especially on neglected examples.

4. **Limited Power for Modern Standards** The low-output version (typically around 55 60 hp) is adequate for cruising but feels underpowered compared to modern bikes. Acceleration is linear but not quick, and overtaking on highways can be challenging.

5. **Ride Quality Issues** The suspension (even with twin forks) is stiff by today s standards, leading to a harsh ride on rough roads. The seat is often uncomfortable for long rides, and wind protection is minimal.

6. **Parts Availability and Costs** While parts are plentiful, some components (e.g., original twin-fork forks, specific carburetors) can be expensive or difficult to source. Rebuilding the engine or transmission may require specialized skills or tools.

7. **Environmental and Legal Considerations** Older bikes may not meet modern emissions standards in some regions, though the KZ750 s carbureted setup usually avoids this issue. Additionally, insurance and registration costs can be higher due to age and lack of modern safety features.

8. **Resale Value Depreciation** Classic bikes hold value for enthusiasts, but the KZ750 is not as sought-after as some other Japanese classics (e.g., Honda CB750, Yamaha XS650). A heavily modified or neglected example will depreciate faster.

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### **Conclusion**

The 1976 1979 Kawasaki KZ750 with twin forks and a low-output fork shaft is a **fantastic choice for enthusiasts who prioritize nostalgia, reliability, and modifiability** over modern performance and safety. It offers a unique blend of vintage charm and practicality, making it ideal for collectors, restorers, or riders who enjoy the classic riding experience. However, it is **not suited for those seeking high performance, modern safety features, or a comfortable, nimble ride**.

If you value **history, craftsmanship, and the joy of tinkering**, the KZ750 is a rewarding purchase. If you need **agility, power, or safety**, a modern bike would be a better investment.

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### **Recommendation**

- You are an enthusiast who appreciates classic motorcycles and are willing to invest time in maintenance and upgrades.

- You plan to restore or modify it (e.g., swapping in modern components like a fuel injection system or upgrading the suspension).

- You enjoy the retro riding experience and don t require high-speed performance.

- You have access to a reliable mechanic familiar with older Japanese bikes.

- You prioritize safety, handling, or modern technology (e.g., ABS, traction control).

- You want a bike for daily commuting or long-distance touring without discomfort.

- You are not prepared for higher maintenance costs or the hassle of sourcing parts.

- You prefer a bike that can keep up with traffic on highways or handle aggressive riding styles.

- For a **modern classic** with better safety and performance, consider a **restomod Kawasaki Z1 (1972 1973)** or a **Honda CB750**.

- For a **more practical vintage bike**, the **Yamaha XS650** or **Suzuki GS850** offer better handling and reliability.

- If you want **high performance**, a **modern sportbike or naked bike** (e.g., Kawasaki Ninja 400, Yamaha MT-07) would be a smarter choice.

Ultimately, the KZ750 is a **passion project** rather than a practical daily rider. If you re buying it for the love of the bike, it s a fantastic investment in nostalgia and mechanical satisfaction. If you re buying it as a practical machine, weigh the trade-offs carefully.

Details:

It is a vintage part and made of steel material. This Shift fork set is made for the 1976 - 1979 Kawasaki Kz 750 Twin motorcycle. The set includes low-output low fork shaft, with OE/OEM part numbers #13140-1008, #13129-056, and #49047-5003.

part #: bjr4295 prices

• $5.78-$27.99

specifications cyclevintagee:

• for models: Kz, 750, Twin
• for makes: Kawasaki
• for years: 1976-1979
• brand: Shift
• mpn: Bjr-4295
• part type: Fork Shaft
• machine type: Motorcycle
• oe/oem part number: 13140-1008 13129-056 49047-5003
• color: Silver
• material: Steel
• vintage part: Yes
• compatible year: 1976 1979
• placement on vehicle: Front
• country of origin: United States

offer cyclevintagee:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: February 26, 2026

general cyclevintagee:

• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories
• condition: Used

shipping cyclevintagee:

• transit: 4-8 Days
• service: USPS Ground Advantage
• type: Fixed
• class: Standard
• cost: $0.00
• carrier: USPS

payments cyclevintagee:

• wallet: Paypal
• other
• credit card: Discover

seller cyclevintagee:

• rating: 99.8%
• # reviews: 2948
• city: Kunkletown, Pennsylvania

returns cyclevintagee:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

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