fits model: Dyna, Street, Bob. make: Harley. year: 2005–2006.

( Brand: Harley-davidson ), ( Manufacturer Part Number: 1HD1GX11X6K319434 ), ( Part Type: Frame )
The **Harley-Davidson 2005-2006 FXDBI "Dyna Street Bob"** with frame/chassis designation **1HD1GX11X6K319434** represents a refined yet unapologetically bold interpretation of classic American motorcycle engineering, blending the raw character of a streetfighter with the modern comforts of a touring-oriented platform. Built upon Harley-Davidson s revolutionary **Dyna Glide chassis**, this model features a **steel trellis frame** paired with a **cast aluminum swingarm**, a design choice that balances rigidity for precise handling with the weight savings of modern materials. The **FXDBI** designation signifies the "Street Bob" variant, a nod to the iconic 1950s-era Harley-Davidson "Street Bob" models, which were stripped-down, high-performance cruisers designed for aggressive riding. This iteration, however, retains the **Evo engine** a 1,000cc V-twin with **16-valve heads, individual throttle bodies, and a high-revving 10,000 RPM redline** delivering a throaty, growling exhaust note that s both aggressive and melodic. The **crankshaft-mounted balancer** smooths out vibrations, while the **wet-sump lubrication system** ensures reliability under prolonged use, making it a perfect blend of vintage inspiration and contemporary performance.
Visually, the **FXDBI** exudes a **retro-modern aesthetic**, with its **low-slung, aggressive stance** accentuated by a **short wheelbase** (56.5 inches) and a **raised seat height** (27.2 inches), inviting a forward-leaning riding position. The **round, chrome-plated headlights** and **dual exhaust pipes** (with optional **Triple Chrome or Black Oxide finishes**) evoke the classic Harley look, while the **blacked-out or polished steel components** such as the **single disc brake system** (front) and **rear drum brake** add a touch of contemporary sophistication. The **saddle-style seat** is upholstered in **black vinyl or optional leather**, providing a firm yet supportive ride, ideal for both city commuting and highway cruising. Underneath, the **front suspension** consists of a **dual-shock absorber fork**, while the **rear suspension** features a **dual-shock absorber swingarm with a preload-adjustable shock**, allowing riders to fine-tune their ride quality for comfort or sportiness.
Mechanically, the **FXDBI** is a **high-performance cruiser** with a **6-speed transmission** (with a **reverse gear**) and a **chain final drive**, offering smooth shifting and a wide powerband. The **Evo engine** produces **70 horsepower and 60 lb-ft of torque**, enough to propel the bike from 0-60 mph in around **4.5 seconds** while maintaining a **top speed of approximately 110 mph**, making it one of the quickest Harley-Davidson models of its era. The **fuel-injected engine** ensures consistent power delivery, while the **oil-cooled pistons** and **forged crankshaft** contribute to its durability. For added safety, the **front disc brake** (with a **single-piston caliper**) and **rear drum brake** provide reliable stopping power, though later models saw upgrades to **dual-disc front brakes** in some variants. The **steering head angle of 61 degrees** and **rake of 28 degrees** give the bike a **sharp, responsive feel**, making it more agile than traditional cruisers while still retaining the laid-back, relaxed riding experience Harley-Davidson is known for.
The **FXDBI s chassis and frame** are designed for **durability and adjustability**, with **adjustable footpegs** (front and rear) allowing riders to fine-tune their ergonomics, while the **steel trellis frame** provides a **stiff, stable platform** that minimizes flex under hard acceleration or braking. The **cast aluminum swingarm** reduces weight while maintaining strength, contributing to the bike s **balanced handling**. The **wheelbase of 60.2 inches** ensures stability at speed, while the **low center of gravity** (thanks to the **Evo engine s compact design**) enhances cornering confidence. Though not as heavily equipped as a touring model, the **FXDBI** includes **standard features** such as **electric start, a digital speedometer, and a fuel gauge**, along with **optional add-ons** like **windshields, saddlebags, and luggage systems** for those who wish to extend its utility beyond pure streetfighting.
In summary, the **2005-2006 Harley-Davidson FXDBI "Dyna Street Bob"** with chassis number **1HD1GX11X6K319434** is a **timeless fusion of vintage inspiration and modern engineering**, offering a **high-performance, low-slung cruiser** that balances **aggressive styling, responsive handling, and reliable power**. Whether cruising down a scenic highway, navigating city streets, or simply enjoying the open road, this bike delivers the **raw, unfiltered Harley-Davidson experience** a perfect blend of **heritage and innovation** for riders who demand both **character and capability**.
### **Pros and Cons of Buying a 2005-2006 Harley-Davidson FXDBI (Dyna Street Bob) with Frame/Chassis #1HD1GX11X6K319434**
#### **Pros**
1. **Classic Dyna Street Bob Design** The FXDBI is a stylish, low-slung cruiser with a sportier stance compared to traditional Harley touring bikes. Its aggressive fairing, exposed engine, and angular bodywork give it a unique look that appeals to riders who want something different from a standard Softail or Touring bike.
2. **V-Twin Engine (Evo 883cc)** The FXDBI comes with Harley s Evolution engine, a reliable 883cc V-twin that produces around **60-65 horsepower** and **60 lb-ft of torque**. While not as powerful as modern Harley engines, it s smooth, durable, and well-suited for cruising and light highway riding.
3. **Lightweight for a Harley** At around **550-580 lbs**, the FXDBI is significantly lighter than touring models, making it easier to maneuver in traffic and less tiring on long rides.
4. **Good Handling for a Cruiser** The Dyna platform uses a **steel trellis frame** and **swingarm**, which provides better weight distribution and handling than traditional Harley frames. It rides more like a sporty cruiser than a heavy touring bike.
5. **Mod Potential** The FXDBI s exposed engine, fairing, and chassis make it a popular choice for customization. Owners can easily swap out fairings, exhausts, handlebars, and suspension for a more aggressive or comfortable ride.
6. **Lower Running Costs (Compared to Touring Models)** Since it lacks the heavy fairings, windshield, and electronic gadgets of a Touring bike, maintenance and fuel costs are generally lower.
7. **Nostalgic & Collectible** The FXDBI was Harley s first Dyna model, and its retro-futuristic design has aged well. Some collectors appreciate its place in Harley history, which could increase its value over time.
8. **Decent Fuel Economy for a Harley** Expect around **35-40 MPG** on the highway, which is better than most Harley touring bikes.
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#### **Cons**
1. **Aging Technology & Reliability Concerns** The **Evo engine** is outdated by modern standards and lacks fuel injection (it uses a carburetor). Common issues include **carburetor clogging, oil leaks, and timing chain wear**. The **6-speed transmission** is also less refined than modern Harley automatics.
2. **Poor Fuel Economy & High Fuel Costs** While better than touring bikes, **35-40 MPG is still poor** for a bike of this size, leading to higher running costs.
3. **Comfort Limitations** The FXDBI lacks the **ergonomic seating, wind protection, and suspension tuning** of modern Harley touring bikes. Long rides can be uncomfortable, especially on rough roads.
4. **Rust & Frame Issues** Many **2005-2006 Harleys** suffer from **frame rust**, particularly in the **trellis frame area** and **swingarm**. The **FXDBI s frame is steel, which is more prone to rust** than aluminum frames in newer models. A thorough inspection is **essential**.
5. **Limited Aftermarket Support** While modding is possible, the **FXDBI is not as widely supported** as newer Harley models. Finding parts, especially for suspension and fairings, can be harder.
6. **No Modern Safety Features** Unlike newer Harleys, the FXDBI lacks **traction control, ABS, or advanced electronics**, making it less safe in slippery conditions.
7. **Resale Value** The FXDBI is **not a high-demand bike**, and its value depreciates faster than newer Harley models. If you plan to sell later, you may not get as much as you paid.
8. **Noise & Vibration** The **Evo engine is loud and vibrates significantly**, especially at highway speeds. The **lack of sound deadening** makes for a rough ride compared to modern bikes.
9. **Potential Electrical Issues** Many **2005-2006 Harleys** have **electrical gremlins**, including faulty wiring, weak batteries, and unreliable lighting.
10. **Limited Legroom & Ergonomics** The **low-slung design** means shorter riders may struggle with foot pegs and seating position, while taller riders may find the handlebars too low.
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### **Conclusion & Recommendation**
The **2005-2006 Harley-Davidson FXDBI (Dyna Street Bob)** is a **fun, stylish, and mod-friendly bike** that appeals to riders who want something different from a traditional Harley cruiser. It s **lightweight, handles well for a Harley, and has a unique look**, making it a great choice for **weekend cruisers, city riders, and customization enthusiasts**.
However, it comes with **significant drawbacks**, particularly **reliability concerns, poor fuel economy, comfort issues, and rust susceptibility**. If you re buying one, **expect higher maintenance costs** especially if the **frame, engine, or carburetor need work**. The **lack of modern safety features and resale value** are also major considerations.
#### **Who Should Buy It?**
**Riders who want a unique, sporty Harley** and don t mind extra maintenance.
**Enthusiasts who plan to heavily customize** the bike.
**Those who prioritize style over comfort and fuel efficiency**.
**Budget buyers who find a well-maintained example** (with **clean frame, fresh engine, and carburetor work**).
#### **Who Should Avoid It?**
**Long-distance riders** who need comfort and fuel efficiency.
**Beginners or casual riders** who want a hassle-free bike.
**Those who prioritize modern safety features** (ABS, traction control).
**Buyers who plan to keep it long-term** (resale value is weak).
#### **Final Recommendation**
If you **find a well-documented, low-mileage FXDBI with a rust-free frame, fresh engine, and carburetor work**, it can be a **great project bike or a fun weekend rider**. However, **budget at least $5,000-$7,000** to account for potential repairs (especially if the frame or engine needs attention).
For a **more reliable and comfortable Harley experience**, consider:- A **2010 FXDB (with Milwaukee-Eight engine)** for better power and reliability.
- A **2010 Softail (e.g., Softail Deluxe)** for a more traditional cruiser with modern refinements.
- A **used Touring bike (e.g., 2010 Street Glide)** if you plan on long rides.
If you re **set on the FXDBI**, **inspect the frame for rust, test the engine for smoothness, and check the carburetor for cleanliness**. A **pre-purchase inspection by a Harley mechanic is highly recommended** before buying.