Toxic MX Lever Set for KTM 125 SX Dirt Bike
Toxic MX Lever Set for KTM 125 SX Dirt Bike
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Description
Technical Specifications
- MFG. Part Number MX7287MX8284BK
Vehicle Information
KTM 125 SX Dirt Bike (1992-2026)
The KTM 125 SX, a motocross staple from 1992 to 2026, consistently features a 124cc to 124.8cc two-stroke, liquid-cooled, single-cylinder engine. While no distinct "trims" beyond the standard 125 SX are widely marketed, the model has undergone continuous evolution. Significant generational changes include a brand-new engine in 1998, a shift from a six-speed to a five-speed transmission in 2003, and a completely new engine generation, frame, and suspension in 2016. A major overhaul in 2023 introduced throttle body injection (TBI) fuel-injection, an electronic power valve, electric start, and a new frame design, marking a significant technological leap for the series. FAQ:
Q: How do I ensure I select the correct parts for my KTM 125 SX?
R: To guarantee compatibility, please use the year and edition selector on this page. This will filter parts specifically designed for your motorcycle's model year.
Maintenance
| Component | Interval | Details |
| Engine Oil (Transmission Oil) | Every 5 to 10 hours | 5 hours for aggressive/race-level riding, 10 hours for recreational riding. Replace oil filter with each oil change. |
| Oil Filter | With each transmission oil change | |
| Drive Belt | Not applicable | The KTM 125 SX is a two-stroke dirt bike and does not use a drive belt. |
| Spark Plug | Check and adjust periodically | Replace as needed. Some manuals mention replacement during general service. |
| Air Filter | Every 2 to 15 hours | Inspect and clean after every ride or every 5-10 hours. Replace if damaged or excessively dirty. Intervals range from 2-3 hours (aggressive) to 15 hours (recreational). |
| Coolant | Check level periodically | Replace as per owner's manual recommendations. |
| Top-End Inspection (Piston and Cylinder) | Every 20 to 50 hours | 20-30 hours for aggressive/race-level riding, 40-50 hours for recreational riding. |
| Bottom-End Inspection (Crankshaft and Bearings) | Every 40 to 100 hours | 40-60 hours for aggressive/race-level riding, 80-100 hours for recreational riding. |
| Power Valve Inspection | Every 20 to 30 hours | 20 hours for some older models (e.g., 1994), 30 hours for newer models. |
| Chain Maintenance | After every ride or every 10 hours | Clean and lubricate. |
| Brake System | Check regularly | Check pad thickness and fluid levels. |