Athena Race Kit EXC-F 250 17-19 FE250 17-19 BB 82mm 276CC

The kit allows a significant power increase from low to high RPM, while maintaining the rest of the original components and without any modification to the engine crankcase. The kit guarantees perfect reliability and an optimal run to the piston, thanks to the lightweight aluminum cylinder and the nickel-silicon plating. Piston and gaskets included in the kit have been developed specifically for the requirements deriving from the increase in displacement and all the components of the kit have been designed and tested to withstand the highest temperatures, pressures and stress.