KTM 51503101000BE Frame Chassis FT13 150SX

( Manufacturer Part Number: 51503101000BE ), ( Type: Front Frame )

Review KTM 150 Frame Chassis Main Oem Stock fits 125SX SX 125 2013–2014

The **KTM 51503101000BE 2013 2014 125SX/150SX Frame/Chassis** is a meticulously engineered, high-performance component designed to elevate the riding experience of KTM s legendary 125cc and 150cc off-road motorcycles. Crafted from premium-grade aluminum, this frame and chassis assembly represents the pinnacle of KTM s commitment to lightweight construction, durability, and aggressive handling hallmarks of the brand s reputation for building machines that excel in both competitive motocross and rugged trail riding. The **FT13/FT14 125SX/150SX frame** features a **double-cradle design** with a **fully welded, hydroformed aluminum structure**, ensuring optimal rigidity while minimizing weight. This construction not only enhances cornering stability and responsiveness but also absorbs the brutal impacts of off-road riding, reducing fatigue and improving overall durability. The frame s **integrated mounting points** are strategically positioned to accommodate KTM s high-performance suspension systems, including the **WP XPLORA** forks and **WP rear shock**, allowing for precise tuning to match rider weight, terrain, and personal preference. Whether tackling tight, technical trails or carving through loose, uneven terrain, this frame delivers a **sporty, planted feel** that translates seamlessly into aggressive riding dynamics.

Beyond its structural integrity, the **51503101000BE frame** is engineered with **aesthetic and functional precision**, reflecting KTM s signature design language. The **sleek, angular lines** of the double-cradle frame not only enhance the motorcycle s aggressive stance but also optimize airflow for better cooling of critical components. The **reinforced down tubes and seat stays** provide additional strength where it matters most, ensuring the frame can withstand the demands of high-speed jumps, sharp turns, and repeated impacts without compromising performance. Compatible with both the **125SX** and **150SX** models, this frame is a **universal fit** for riders looking to upgrade, restore, or customize their KTM, offering a perfect balance between stock performance and aftermarket potential. Whether paired with a fresh engine build, upgraded suspension, or a new fuel system, the **2013 2014 125SX/150SX frame** serves as the backbone of a machine that is as capable on the track as it is on the trail, embodying KTM s legacy of innovation and rider-centric engineering.

### **Pros and Cons of Buying a 2013-2014 KTM 125SX/150SX (Frame/Chassis: FT13/FT14, Part Number: 51503101000BE)**

#### **Pros**

1. **Performance and Reliability**

- The KTM 125SX/150SX is a well-regarded dirt bike known for its lightweight frame, responsive engine, and aggressive handling. The 125cc and 150cc single-cylinder engines are tuned for high-revving performance, making them suitable for both beginners and experienced riders.

- The FT13/FT14 chassis is a proven design, offering a balance of stiffness and comfort, with improved suspension geometry compared to earlier models.

2. **Lightweight and Agile**

- KTM s use of aluminum and high-strength steel in the frame keeps the bike lean, improving maneuverability and making it easier to control at high speeds or in tight corners.

- The 125SX is particularly popular among younger or smaller riders due to its manageable weight (around 100-110 kg / 220-240 lbs).

3. **Aftermarket Support**

- KTM has a strong aftermarket following, with readily available parts, upgrades (e.g., suspension, exhaust, clutch), and tuning options. This makes maintenance and customization straightforward.

- The bike s simplicity also means repairs are often easier and less costly than on more complex modern bikes.

4. **Durability**

- The engine and drivetrain components are robust, especially if the bike has been well-maintained. The 150SX, in particular, is known for its longevity, often lasting well beyond 10,000 km (6,200 miles) with proper care.

- The frame is designed to handle the stresses of motocross, though rust or frame cracks should be inspected if the bike has seen heavy use or off-road abuse.

5. **Resale Value**

- KTM bikes, especially older models with a reputation for reliability, hold their value reasonably well in the used market. The 125SX/150SX is still a sought-after bike for beginners and intermediate riders.

6. **Cost-Effective**

- Compared to newer KTM models or competitors like Husqvarna or Yamaha, the 2013-2014 125SX/150SX is significantly cheaper to purchase. This makes it an attractive option for riders on a budget.

- Fuel efficiency is also good for its class, with the 125cc model averaging around 1.5-2.0 L/100 km (150-180 km/L) and the 150cc model slightly less efficient but still reasonable.

7. **Beginner-Friendly**

- The 125SX is an excellent choice for first-time motocross riders due to its manageable power delivery and lightweight frame. The 150SX offers more power for those ready to progress but still retains ease of handling.

---

#### **Cons**

1. **Age and Wear**

- Being from 2013-2014, the bike is now over a decade old. Components like the engine, suspension, and drivetrain may show signs of wear, especially if the bike has been ridden heavily or neglected.

- The battery, clutch, and chain may need replacement, and the engine s internals (pistons, rings, crankshaft) could be approaching the end of their lifespan if the bike has high mileage (e.g., 10,000 km).

2. **Suspension and Tires**

- The WP suspension (shock and fork) on these models is decent but not as advanced as modern setups. Forks and shocks may require rebuilding or replacement if they ve been abused.

- Tires will likely be worn, and motocross tires degrade quickly. Budget for new tires if the bike is to be ridden regularly.

3. **Fuel Injection Issues**

- The 125SX/150SX uses a fuel-injected engine, which can be finicky if not maintained properly. Common issues include clogged injectors, sensor failures, or fuel pump problems. These can be costly to diagnose and fix if the bike hasn t been regularly serviced.

- The electronic ignition (if equipped) may also require occasional attention.

4. **Exhaust and Emissions**

- The catalytic converter (on some markets) or exhaust system may need cleaning or replacement if the bike has been ridden aggressively. Emissions compliance can be an issue in regions with strict regulations.

- The stock exhaust is loud and may not meet modern noise standards in some countries.

5. **Limited Modern Features**

- Compared to newer KTM models, the 2013-2014 versions lack advanced features like electronic suspension (ECS), advanced telemetry, or modern ergonomics. Riders used to newer bikes may find the controls less intuitive.

- The seat and handlebars are basic, which may not suit riders with specific ergonomic needs.

6. **Maintenance Requirements**

- Motocross bikes require frequent maintenance, including chain lubrication, valve adjustments, and suspension servicing. The 125SX/150SX is no exception, and neglect can lead to costly repairs.

- If the bike has been stored for long periods, rust (especially in the swingarm or frame) or seized components may be an issue.

7. **Market Availability of Parts**

- While parts are available, some components (e.g., specific suspension seals, O-rings, or rare bolts) may be harder to find than on newer models. Stockpiling spare parts is advisable for remote areas.

8. **Potential Frame or Fork Damage**

- The frame and fork legs are prone to bending or cracking if the bike has been crashed heavily. A thorough inspection by a mechanic is essential before purchase to rule out hidden damage.

---

### **Conclusion**

The 2013-2014 KTM 125SX/150SX is a capable and fun dirt bike that remains a solid choice for riders seeking an affordable, high-performance machine. It excels in terms of reliability, aftermarket support, and beginner-friendliness, particularly the 125cc model. However, its age means it requires more attention to maintenance and may have hidden issues if not properly cared for.

For **budget-conscious buyers**, especially those new to motocross or looking for a project bike, the 125SX/150SX offers great value. It s a great way to learn the sport without breaking the bank. For **experienced riders**, the 150SX provides more power and is a fun bike to ride, though it may not match the refinement of newer models.

- Engine condition (compression, leaks, wear).

- Suspension functionality (fork seals, shock rebuildability).

- Frame and fork integrity (no cracks or bends).

- Electrical system (battery, sensors, ignition).

- Tires and drivetrain (chain stretch, sprocket wear).

Budget for **essential upgrades** (tires, chain, battery, suspension rebuild) to ensure the bike is road-ready. With proper care, this bike can provide years of enjoyment, but it s important to manage expectations regarding long-term reliability compared to a newer model.

### **Recommendation**

- **Buy if:** You re on a tight budget, seeking a beginner-friendly bike, or willing to invest time in maintenance. The 125SX is ideal for younger or smaller riders, while the 150SX suits intermediate riders who want more power.

- **Avoid if:** You expect a "plug-and-play" bike with minimal upkeep, or if you re looking for the latest technology and comfort features. Consider a newer KTM (e.g., 2018 models) or a well-maintained Husqvarna/Yamaha if you want a more modern experience.

- **Best use case:** A training bike, a project for learning bike mechanics, or a fun ride for casual motocross enthusiasts who don t mind putting in effort to keep it running smoothly.

Ultimately, this bike is a **great entry-level or budget-friendly option** but requires commitment to maintenance. If you re prepared for that, it s a rewarding purchase.

Details:

What you see is what get. There are some scuffs and scratches from normal use. No cracks, dents, excess wear, or damage. U1 It will fit a 2013 - 2014 KTM 150 SX or 125.

This frame is in excellent working condition. Just mount and ride!Look closely at the pictures. Up for sale is a used OEM frame off of 2014 KTM 150 SX.

part #: 51503101000be prices

• $110.00-$499.99

specifications mocycfra:

• for models: 125sx, Sx, 125
• for makes: Ktm
• for years: 2013-2014
• mpn: 51503101000be
• type: Front Frame

general mocycfra:

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

seller mocycfra:

• # reviews: 10822
• rating: 100.0%
• city: Burbank, California

offer mocycfra:

• best offers: True
• availability: In Stock
• quantity: 1
• sold: 0
• started: May 27, 2026
• options: Ship-to-home

returns mocycfra:

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

shipping mocycfra:

• carrier: UPS
• service: UPS Ground, UPS 3 Day Select, UPS 2nd Day Air
• transit: 4-9 Days
• cost: $83.22
• class: Standard, Expedited
• type: Calculated

payments mocycfra:

• credit card: Diners-club
• wallet: Paypal
• other

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