If you want to add some extra grunt to your .40-.46 model then this is the answer. It has the same bolt spacing as the .46AX yet delivers a useful 15% increase in power allowing it to swing larger props. Includes the super quite E-3701 Powerbox silencer. The 55AX is the most popular 2 stroke in the OS range and it's not difficult to see why!
A superb engine that will give years of trouble free life. It is after all an O.S.!
To download a PDF of the parts listing please click here
Spares and Accessories for your O.S. Engine
If you need any spares or accessories for your engine that are not listed on the site please contact us for a price and availability.