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Description
FEATURES
- Dual-bonded foam design filters out even the smallest dirt particles, while allowing more airflow than two separate layer filters (flow bench proven)
- Twin Air filters are slightly smaller than stock to make them easier to change and to increase dead air space around the filter for better performance
- Flat foam sealing ring securely seats against the airbox, even in the worst riding conditions
Technical Specifications
- MFG. Part Number 152011
Vehicle Information
KTM 50 SX Dirt Bike (1994-2026)
The KTM 50 SX, a cornerstone in youth motocross from 1994 to 2026, has consistently offered a potent package for aspiring riders. This mini-motocross bike features a single-cylinder, two-stroke, liquid-cooled 49cc or 49.9cc engine, paired with an automatic centrifugal clutch for ease of use. Horsepower has evolved from approximately 2 HP in early models to around 5.5 HP in recent years, with power-reduction kits available to tailor performance for different skill levels. Over its long production run, the KTM 50 SX has seen significant generational advancements. Early models (1994-early 2000s) often featured air-cooled engines and drum brakes, gradually transitioning to liquid cooling and disc brakes. A major overhaul in 2017 introduced revolutionary WP AER 35 air-sprung front forks and a newly developed exhaust. More recently, the 2024 models received a full revamp, including a new chromoly steel frame, adjustable ergonomics, and an updated automatic clutch, with Factory Edition trims offering premium components. Various trims like SX Mini, SX Junior, and SX Senior have catered to different age and skill groups throughout the years. FAQ:
Q: How can I ensure this product fits my KTM 50 SX?
A: To guarantee compatibility, please use the year and edition selector on this page to find parts specific to your model.
Maintenance
| Component | Interval | Details |
| Engine Oil Change | 5 to 10 hours (recreational) or 3 to 5 hours (race) | More frequent for aggressive or race riding. |
| Oil Filter | With every engine oil change | Recommended to maintain engine performance. |
| Air Filter Service | 2 to 5 hours, or after every ride in harsh conditions | Clean more frequently in dusty or muddy conditions. |
| Spark Plug | Check regularly, replace every 10 hours if necessary | Electrode gap: 0.60 mm. |
| Coolant | Every 90 hours or 24 months | Completely drain and replace. |
| Power Valve System Inspection | 15 to 20 hours | More frequent for aggressive riding. Inspect the power valve system. |
| Top-End Inspection | 20 to 50 hours | Check piston, rings, and cylinder. Interval varies by riding style. |
| Bottom-End Inspection | 30 to 100 hours | Check crankshaft and bearings. Interval varies by riding style. |