KTM 50206001000 Air Boxbox Box Filter Cage Intake Airbox

( Manufacturer Part Number: 50206001000 ), ( Type: Airbox ), ( Country Of Origin: Japan ), ( Placement On Vehicle: Rear )

Review KTM Airbox Air Filter Box Cage Intake Oem fits MX125 MX 125 1991–1997

The **KTM 50206001000 Airbox Assembly (1991 1997 MX125/MX 250SX)** is a precision-engineered component designed to optimize airflow and performance in KTM s legendary off-road motorcycles from the early '90s. This robust, high-quality airbox assembly serves as the critical interface between the atmosphere and the engine s intake system, ensuring a clean, unrestricted flow of air while protecting the engine from debris, dust, and contaminants that plague motocross and enduro riding. Crafted from durable materials, the airbox features a **sleek, cage-like intake structure** that houses the **air filter**, a critical element for maintaining engine longevity and peak performance. The **MX125/MX 250SX models** of this era relied heavily on efficient air intake to balance power delivery with reliability, and this airbox assembly was specifically engineered to meet those demands. The **1991 1997 model range** is known for its aggressive, high-revving nature, and this airbox plays a pivotal role in sustaining that performance by minimizing intake restrictions and maximizing throttle response. Whether used in stock form or as part of a tuning setup, this airbox assembly ensures that riders can push their bikes to their limits while keeping the engine running smoothly. Built to withstand the rigors of motocross from deep mud to high-speed jumps the assembly features a **sealed, gasketed design** that prevents leaks and maintains optimal vacuum pressure, which is essential for proper carburetion and engine efficiency. For riders seeking to restore or upgrade their KTM s intake system, this airbox is a **direct-fit, OEM-quality replacement** that preserves the bike s original performance characteristics while offering the durability needed for intense racing or trail riding. Whether you're preparing for a race weekend or simply maintaining your classic KTM, this airbox assembly is a **vital component** that ensures your engine breathes freely, performs reliably, and stays protected against the elements.

### Pros and Cons of Buying a KTM 50206001000 (1991 1997 MX125 Airbox/Intake System)

#### **Pros**

1. **Reliability and Durability** The KTM MX125 from the early '90s is known for its robust, air-cooled single-cylinder engine, which is simple yet dependable. With proper maintenance, these bikes often last decades without major mechanical failures.

2. **Lightweight and Agile** The MX125 is one of the lightest production motocross bikes of its era, making it highly maneuverable and easy to handle, especially for smaller riders or those new to motocross.

3. **Proven Performance** The 125cc two-stroke engine was designed for off-road racing, delivering strong power-to-weight ratios and responsive throttle control. Many riders appreciate its raw, unfiltered performance.

4. **Affordability** Compared to modern motocross bikes, a used MX125 from this era is significantly cheaper, making it an attractive option for budget-conscious buyers.

5. **Modification Potential** The bike s simple design allows for easy upgrades, such as swapping the airbox, installing a high-performance exhaust, or tuning the carburetion for better performance.

6. **Classic Appeal** For enthusiasts who enjoy the nostalgia of vintage motocross, the KTM MX125 has a cult following and a distinct retro look that modern bikes lack.

7. **Minimalist Maintenance** Two-stroke engines are generally easier to service than four-stroke counterparts, with fewer components requiring regular attention (e.g., no oil pump, simpler clutch systems).

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#### **Cons**

1. **Lack of Modern Safety Features** The bike lacks modern safety advancements such as disc brakes (early models had drum brakes), advanced suspension tuning, and electronic fuel injection. This makes it less safe for aggressive riding compared to today s standards.

2. **Poor Fuel Efficiency** Two-stroke engines consume fuel at a much higher rate than four-strokes, requiring frequent refueling during long sessions, which can be costly.

3. **Environmental Concerns** Two-stroke engines produce more emissions and are less eco-friendly than modern four-stroke alternatives, which may be a consideration for riders in areas with stricter environmental regulations.

4. **Limited Availability of Parts** While KTM parts are still produced, some aftermarket components (especially for older models) may be harder to find compared to newer bikes. This can make repairs more challenging over time.

5. **Rust and Wear** Older bikes, especially those from the '90s, may suffer from rust, worn-out suspension, or degraded rubber components if not properly maintained. Buyers should inspect the frame, chain, and suspension closely.

6. **No Electronic Assistance** Unlike modern bikes with traction control, launch control, or adjustable suspension, the MX125 relies entirely on rider skill, which can be a disadvantage for inexperienced riders.

7. **Resale Value** Vintage bikes generally depreciate faster than newer models, so if you plan to sell it later, the return on investment may not be as high as with a modern bike.

8. **Noise and Vibration** The raw, unmuffled sound of a two-stroke engine can be loud and exhausting over long periods, and the lack of modern vibration dampening makes for a rough ride compared to modern bikes.

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### **Conclusion**

The KTM MX125 (1991 1997) is an excellent choice for riders who prioritize simplicity, affordability, and the thrill of vintage motocross. It s ideal for those who enjoy tinkering with their bikes, appreciate the raw performance of a two-stroke engine, or simply want a lightweight, fun machine for casual riding or light competition. However, it is not suited for riders seeking modern comfort, safety, or environmental friendliness.

If you re buying this bike primarily for nostalgia, modification potential, or budget-friendly motocross, it remains a solid option. However, if you re looking for a bike that aligns with today s safety and performance standards, a modern four-stroke MX125 or a used but well-maintained contemporary bike may be a better long-term investment.

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### **Recommendation**

- You re an experienced rider who enjoys the challenge of a simpler, older machine.

- You plan to heavily modify it for performance or aesthetics.

- You re on a tight budget and don t mind the trade-offs in modern safety and comfort.

- You appreciate the classic KTM design and want to preserve or restore it.

- You prioritize modern safety features (disc brakes, electronic assistance).

- You plan to ride aggressively or compete at higher levels where modern bikes have an edge.

- You re sensitive to noise, vibration, or environmental concerns.

- You want a bike with strong resale value or long-term reliability without major maintenance.

For most riders today, the MX125 is best suited as a fun, project bike rather than a daily or high-performance machine. If you re serious about motocross, consider a modern four-stroke alternative, but if you love the spirit of the '90s and don t mind its limitations, the KTM MX125 remains a fantastic choice.

Details:

No cracks, not bent or damaged, good threads and mounting tabs. Condition Used. Some cosmetic blemishes, overall good to use. Nice OEM KTM airbox.

Ready to ship and guaranteed as described. 1991 1997 KTM 125MX MX125 MX 125 Airbox Air Filter Box Cage Intake OEM.

part #: 50206001000 prices

• $30.32-$160.00

specifications mocycfra:

• for models: Mx125, Mx, 125
• for makes: Ktm
• for years: 1991-1997
• mpn: 50206001000
• type: Airbox
• country of origin: Japan
• placement on vehicle: Rear

returns mocycfra:

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

payments mocycfra:

• credit card: Diners-club
• wallet: Google-pay
• other

general mocycfra:

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

shipping mocycfra:

• class: Standard, Economy
• carrier: USPS, UPS
• type: Calculated
• transit: 4-10 Days
• service: USPS Ground Advantage, UPS Ground Saver
• cost: $32.35

offer mocycfra:

• sold: 0
• options: Ship-to-home
• quantity: 1
• started: March 10, 2026
• availability: In Stock

seller mocycfra:

• rating: 99.8%
• city: Sun City, California
• # reviews: 8786

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