Description
The ATHENA Cylinder Kit delivers the displacement and thermal management your KX125 needs to compete at the highest levels. A larger 54mm bore paired with advanced nickel-carbide coating and optimized water jackets ensures consistent performance in extended race conditions. This bolt-on upgrade requires no machine work—just precision engineering that bolts straight onto your bike.
- Fitment: KX125 specific
- Bore diameter: 54mm
- Cylinder material: Aluminum
- Cylinder coating: Nickel-carbide
- Water jacket: Enlarged design
- Piston: Forged construction
- Piston coating: Molybdenum
- Installation: Bolt-on only
- Machining required: None
- Includes: Gasket kit
- Documentation: Step-by-step instructions
- MPN: P400250100001







