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O.S. OS FSa-56 w/F-4040 Silencer [L-OS34300]  
RRP: £329.99
Our Price: 296.99 

The new FSa-56 from O.S. is the first engine in a completely new series of advanced four strokes. The FS ‘Alpha’ series draws on the experience gained from the Surpass range to develop and refine standards to a new level. The increased capacity compared to the FS-52 Surpass means more power/torque and the new carburettor provides even better throttle control across the entire RPM range! There are innovative features like incorporating the crankcase breather/oil recirculation system into the crankcase to dispense with external nipples and drain tubes as well as a dramatic & futuristic style. An effective and versatile silencer is supplied as standard.

 

Specification
Weight:419g/14.8oz w/o silencer
Capacity:9.32cc / 0.569 cu.in.
Propeller Range:13x6-7 12x6-8 13x6
Silencer:F-4040
Bore:24.0mm / 0.945in
Stroke:20.6mm / 0.811in
Power Output:1.0PS @ 10,000 RPM
 

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