V-TWIN 51-0849 Hardtail Rear Frame

( Brand: V-twin ), ( Manufacturer Part Number: 51-0849 ), ( Part Type: Frame ), ( Uom: Ea ), ( Accessory Items: 51-0849 Hardtail Rear Frame Section 51-0513 Right Side Cali ), ( Country Of Origin: Taiwan )

Review V TWIN Hardtail Rear Frame Section Model's Part fits SOFTAIL

The **V-Twin 51-0849 Hardtail Rear Frame for Softail** is a meticulously engineered, high-performance component designed to elevate the ride quality, durability, and handling of Harley-Davidson Softail models. Crafted from premium-grade steel, this hardtail rear frame is built to withstand the demands of both daily cruising and spirited riding, offering a robust foundation that enhances stability while maintaining the iconic Softail suspension feel. The frame s precise geometry ensures optimal wheelbase alignment, promoting a balanced, planted ride that reduces body roll and improves traction, particularly during high-speed maneuvers or when navigating uneven terrain. Unlike traditional softail rear frames, this hardtail design eliminates the need for a rear suspension system, simplifying maintenance while delivering a firmer, more responsive ride ideal for riders who prioritize control and agility without sacrificing comfort.

The **51-0849** is engineered with Harley-Davidson s signature attention to detail, featuring precision-welded joints and reinforced stress points to handle the torque and forces generated by modern V-twin engines. Its design integrates seamlessly with the Softail s front suspension, allowing for a more connected, linear power delivery that enhances throttle response and cornering precision. The frame s robust construction also contributes to a longer lifespan, reducing the likelihood of fatigue or misalignment over time. Whether you re a custom builder seeking a lightweight alternative to a traditional softail frame or a rider looking to upgrade for better handling, this hardtail rear frame delivers a compelling blend of performance, durability, and authenticity all while preserving the timeless aesthetic and riding experience that Harley-Davidson enthusiasts cherish. Perfect for both stock applications and aftermarket modifications, the **51-0849** is a standout choice for those who demand excellence in every aspect of their motorcycle s build.

Buying a **V-Twin 51-0849 hardtail rear frame** (designed for hardtail bikes) to modify into a **softail** setup involves several considerations. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Using a Hardtail Rear Frame for a Softail Conversion**

1. **Cost Savings** Hardtail frames are generally cheaper than dedicated softail frames, making this a budget-friendly option for riders looking to build a custom bike.

2. **Availability** Hardtail frames are more widely available, especially for older or discontinued models, which can be harder to find in softail configurations.

3. **Lightweight** Hardtail frames often lack the added weight of a full softail suspension system, which can improve handling and acceleration.

4. **Simpler Modifications** Converting a hardtail frame to softail involves fewer complex components (e.g., no need for a full rear suspension fork or linkage).

5. **Customization Flexibility** You can design a unique rear suspension setup tailored to your riding style, weight, and terrain preferences.

6. **Potential for Performance Tuning** A well-built softail conversion can offer better compliance than a stock hardtail while retaining some of the rigidity of a hardtail frame.

7. **Resale Value Considerations** If you plan to sell the bike later, a well-done conversion might appeal to custom builders or enthusiasts.

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### **Cons of Using a Hardtail Rear Frame for a Softail Conversion**

1. **Structural Limitations** Hardtail frames are not designed for rear suspension loads, meaning they may lack the reinforcement needed for a softail setup. This could lead to frame fatigue or failure over time.

2. **Rear Triangle Weakness** The rear triangle in hardtail frames is often thinner and less robust than in softail frames, which can compromise durability under suspension loads.

3. **Alignment and Geometry Issues** Converting a hardtail to softail may require significant adjustments to the rear triangle, chainstay length, and wheelbase, potentially altering handling characteristics in unintended ways.

4. **Suspension Compatibility Challenges** You ll need to carefully select a rear suspension system (e.g., a single-shock or dual-shock setup) that fits the frame s geometry. Mismatched components can lead to poor performance or damage.

5. **Rider Weight and Load Limits** Hardtail frames are not rated for the additional stress of a softail suspension, especially under heavy riders or aggressive riding. This could shorten the frame s lifespan.

6. **Warranty and Safety Risks** Most manufacturers void warranties for frame modifications, and a poorly executed conversion could pose safety risks (e.g., frame cracks, suspension failure).

7. **Complexity of Build** Successfully converting a hardtail to softail requires mechanical skill, access to specialized tools, and possibly professional help to ensure proper alignment and stress distribution.

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### **Key Considerations Before Proceeding**

- **Frame Material and Condition** Ensure the hardtail frame is in excellent condition with no pre-existing cracks or weaknesses. Steel frames are more forgiving than aluminum for modifications, but even they have limits.

- **Suspension Choice** Opt for a high-quality, adjustable rear suspension system (e.g., a single-shock like the **Pro-Tec or Progressive** or a dual-shock setup) that matches the frame s geometry.

- **Professional Inspection** Have a frame builder or experienced mechanic review the frame before modification to assess its suitability.

- **Riding Intent** If you primarily ride on pavement or light trails, a well-done conversion might work. For heavy-duty off-road use, a dedicated softail frame is safer.

- **Long-Term Costs** Factor in the cost of suspension components, labor (if outsourced), and potential future repairs or replacements due to frame stress.

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### **Conclusion**

Using a **V-Twin 51-0849 hardtail frame** for a softail conversion is feasible for riders on a budget or those seeking a custom build, but it is not without risks. The pros such as cost savings and customization are significant, but the cons, particularly structural limitations and safety concerns, cannot be ignored. A successful conversion requires careful planning, high-quality components, and possibly professional assistance to mitigate risks.

If your primary goal is comfort and compliance without compromising safety, a **dedicated softail frame** (e.g., a Harley-Davidson Softail or a custom-built one) is the safer and more reliable choice. However, if you are experienced with frame modifications, have access to the right tools, and are willing to invest time in research and testing, a hardtail-to-softail conversion can be a rewarding project.

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### **Final Recommendation**

- **For most riders**, especially those new to frame modifications, **purchase a dedicated softail frame** or a high-quality used softail bike. This avoids the risks of frame failure and ensures a smoother, safer ride.

- **For experienced builders** with access to proper tools and resources, a **hardtail conversion can be a viable option** if the frame is thoroughly inspected, reinforced if necessary, and paired with a well-matched suspension system. Start with a smaller project (e.g., a lighter bike or a frame known for durability) to test your approach.

- Using a **steel frame** (if available) over aluminum for better stress distribution.

- Consulting with a **frame builder** to assess reinforcement needs.

- Selecting a **reputable suspension system** with proper preload and travel for your riding style.

- Testing the bike thoroughly before committing to heavy use.

Ultimately, the decision depends on your skill level, budget, and willingness to accept the risks. For most riders, the peace of mind of a factory or professionally built softail frame is worth the investment.

Details:

This hardtail frame section allows for a seamless conversion from Softail to setup, providing enhanced performance and durability. Mounting: Uses clamps for rear oil tank mounting, enhancing stability. The hardtail accepts 1987 1999 Softail rear calipers and brackets, ensuring compatibility with your existing components. Welding Requirement: Must be welded in place by an experienced fabricator for safety and durability.

Crafted for use with a 51-tooth rear pulley and 1-1/2 inch belt, it also accommodates variety of combinations maximum versatility. Features: Compatibility: designed for 1987 1999 Softail model's easy integration. Electrical parts are NOT returnable. Pulley Adaptability: Set up for use with a 51-tooth rear pulley and 1-1/2 inch belt.

Shipping times will vary depending on the country item is being shipped.

part #: 510849 price

• $620.99

specifications mocycfra:

• for models: Softail
• brand: V-twin
• mpn: 51-0849
• part type: Frame
• uom: Ea
• accessory items: 51-0849 Hardtail Rear Frame Section 51-0513 Right Side Cali
• country of origin: Taiwan

offer mocycfra:

• availability: In Stock
• sold: 0
• started: March 4, 2026
• quantity: 9
• options: Ship-to-home

payments mocycfra:

• credit card: Mastercard
• wallet: Google-pay
• other

shipping mocycfra:

• type: Fixed
• cost: $0.00
• class: Expedited
• service: Expedited
• transit: 4-9 Days

general mocycfra:

• condition: New
• Motorcycle Scooter Parts Accessories > Body Frame > Frames Parts

returns mocycfra:

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

seller mocycfra:

• rating: 99.7%
• city: Toms River, New Jersey
• # reviews: 116391

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