OS Engine MAX 55AX (40K) with E-3071 SilencerDesigned to combine maximum power with razor sharp throttle response in the smallest possible crankcase, the 55AX has the same mounting dimensions as the popular 46AX above, but an increase in power to 1.75PS. T
Displacement.545 cu in (8.93cc)Bore.906″ (23mm)Stroke.846″ (21.5mm)Practical RPM2,000-17,000Power Output1.75 PS, 1.68 HP/16,000 RPMWeight w/o muffler14.29oz (405g)Weight w/ muffler18.52oz (525g)Recommended Props12x7-8, 13×6-7
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