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Description
FEATURES
- Constructed of the same great quality and specifications that the Japanese OEMs have trusted and used since 1946
- Parkerizing surface treatment prohibits rust and corrosion, building resistance against those agents, resulting in a longer lasting, better appearance
- Most race applications feature drilled weight-reduction holes (depends on application/tooth size)
- Manufactured from case-hardened chromoly steel for unparalleled strength and durability
Technical Specifications
- MFG. Part Number JTF1323.13SC
Vehicle Information
KTM 125 MX Dirt Bike (1982-1991)
The KTM 125 MX, produced from 1982 to 1991, is an iconic motocross motorcycle renowned for its performance in the 125 cc category. Throughout this period, it maintained a consistent 125 cc displacement but underwent numerous significant technical evolutions. This decade was characterized by frequent engine and chassis redesigns. As early as 1983, a new water-cooled, type 501 engine was introduced, followed in 1984 by an entirely new, lighter, and more powerful engine design. Subsequent years saw the integration of the power valve exhaust system in 1987, along with significant updates to the frame, White Power suspensions, and disc brakes. In 1990, KTM completely overhauled the model, introducing a new ultra-rigid chassis and improved cartridge suspensions, making the 1991 125 MX even lighter and more powerful, closely resembling factory race models. These frequent changes reflect KTM's commitment to continuous innovation. FAQ:
Q: How can I ensure this part is compatible with my KTM 125 MX?
A: To guarantee a perfect fit, please use the year and edition selector located at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil (Gearbox Oil) | Every 10 hours (recreational use) or every 5 hours (aggressive/race use) | Use high-quality oil suitable for two-stroke engines. |
| Oil Filter | With each oil change | Applicable to the gearbox oil filter. |
| Air Filter | Every 15 hours (recreational use) or every 5-10 hours (aggressive/race use) | Regular cleaning and re-oiling are essential, more frequently in dusty conditions. |
| Coolant | Annually or every 40-50 hours | Inspect level during pre-ride checks. Use coolant compatible with aluminum and magnesium. |
| Spark Plug | Inspect every 5 000 to 8 000 km | Replace more frequently for competitive riding. |