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Description
FEATURES
- Reduce the friction dragging down your drivetrain
- Polyurethane roller with 98A durometer harness for long life
- Precision contact sealed bearings keep water and dirt away
- Made in the U.S.A.
Technical Specifications
- MFG. Part Number 79-5008
Vehicle Information
GAS GAS EC 125 Dirt Bike (1989-2015)
The GAS GAS EC 125, an enduro motorcycle, was launched in 1989 as part of the Enducross (EC) series and produced until 2015. Throughout its run, it consistently featured a 124cc or 124.8cc liquid-cooled, two-stroke, single-cylinder engine. This model saw several significant updates over its production. Early models were trail-oriented, with a notable shift in 2000 to upside-down forks and Ohlins shocks, enhancing its performance focus. Further mechanical and aesthetic improvements, including a new cylinder and head design, arrived in 2005. A major chassis redesign occurred in 2010, introducing new components like forged aluminum fork clamps and a translucent fuel tank. The most substantial changes came in 2015, with an all-new cylinder head, updated transmission, and chassis reinforcements, alongside new suspension settings. Various trims like EC Racing, EC Six Days, and US-specific XC and DE models were offered, catering to different riding needs. Q: Will parts for the GAS GAS EC 125 fit my specific model year?
A: To ensure perfect compatibility, please use the year and edition selector on this page.
Maintenance
| Component | Interval | Details |
| Transmission Oil Change | Every 5-10 hours (aggressive/recreational riding) | The 2-stroke EC 125 requires transmission oil changes; engine lubrication is via fuel mix. |
| Transmission Oil Screen | Inspect and clean during transmission oil change | No traditional spin-on engine oil filter; refers to cleaning the transmission oil screen. |
| Spark Plug | Every 50-60 hours | Ensures optimal performance. Type: NGK BR9EG (for 125cc). |
| Air Filter | Every 5-10 hours (aggressive/recreational riding) | Regular cleaning is essential for proper airflow and engine efficiency. |
| Coolant | Every 20-40 hours or once per season | Helps prevent overheating and prolong engine life. |
| Top-End Inspections (Piston, Rings, Cylinder) | Every 20-50 hours (depending on model year and riding style) | Includes piston, rings, and cylinder. Some suggest rings at 50h, full piston at 100h. |
| Bottom-End Inspections (Crankshaft, Bearings, Transmission Components) | Every 50-100 hours (depending on model year and riding style) | Includes crankshaft, bearings, and transmission components. |
| Power Valve Inspections | Every 10-30 hours (depending on model year and riding style) | Inspection of exhaust and intake ports (power valve system). |