Dutch, if I was considering a .55, I think I would wait a bit and see what the new O.S. .75 is like. I'm guessing it will be a lot like my Jett .76. $195.
SPECS: Displacement: 0.75 cu in (12.3cc)
Bore: 1.02" (25.8mm)
Stroke: 0.93" (23.5mm)
Practical RPM:
Power Output:
Weight: 19.4 oz (550g)
Recommended Props: 14x6, 14x8, 15x7