MAX-25FXII 4.07cc 2-Stroke Engine w/ Silencer

O.S.Engine MAX-25FX-II - 4.07cc 2-Stroke Airplane Engine

The O.S.Engine 25FX-II is a high performance side exhaust aero 2-stroke engine that is suitable for many styles of small R/C aircraft such as sport, scale, aerobatic and even .25 class pylon racers. The 25FX II uses a direct needle 21L carburetor for excellent usability and a 892 silencer with adjustable exhaust direction. O.S.'s legendary standard of build quality is evident throughout.

Specifications:

• Displacement: 4.07cc
• Bore: 18mm
• Stroke: 16mm
• Power Output: 0.83hp @ 18.000RPM
• Practical RPM Range: 2.500-19.000
• Weight: 250g (engine, 62g (muffler)