OS ENGINES O.S. MAX 75AX w/E-4040 Silencer L-OS17400
Stock code l-os17400Brand OS ENGINES
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The third engine in the new ‘AX' range of high performance 2 stroke engines fills a convenient gap between the existing 61FX and 91FX, yet features the radical new style pioneered with the fabulous 55AX. The new 75AX is supplied complete with the latest ‘P-Box' design silencer for improved noise suppression. By keeping the lower crankcase dimensions the same as the 61FX, you can be sure that it will fit in all models designed for a .61, making a power upgrade very simple. The 75AX features the latest O.S. ringless piston technology with multi-layer cylinder coating and high precision Type 61A carburettor with angled safety needle valve assembly.
- Fits the same mount and bolt pattern as the 61FX.
- The angular head design looks great and significantly increases surface area for better cooling.
- Includes the new Power Box™ muffler, designed with more volume for increased power while still being very compact.
- A diagonally-placed needle means no remote needle valve is needed.
| Displacement (cu in) | 0.75 (12.3cc) |
| Bore | 1.02 (25.8 mm) ) |
| Stroke | 0.93 (23.5mm) |
| RPM | 2,000-16,000 |
| Output (HP@rpm) | 2.4 @ 16,000 |
| Weight (oz) | 19.4 (550 g) |
| Recommended Props | 14x6, 14x8, 15x7, |
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