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Key Features
* Innovative engineering allows for more power in a lighter-weight package
* Small case size fits into 60- to 90-size airplanes
* Ringed piston and cylinder design allows for better control of piston expansion and more consistent performance
Overview
Evolution’s impressive response to the widely popular request for more power in small a package helps modelers enjoy greater horsepower and performance at a lower price. With its new ringed piston design, increased displacement and lighter weight, the 1.20 has everything asked for from a single-cylinder engine.
Specs
Type: 2-stroke
Displacement: 1.24 cu in 20.31cc
Bore: 1.20 in (30.48mm)
Stroke: 1.10 in (27.94mm)
Cylinders: Single
Total Weight: 29.5 oz (839 g)
Engine (Only) Weight: 24.5 oz (695 g)
Muffler Weight: 5.0 oz (142 g)
Crankshaft Threads: 5/16 to 24
Prop Range: 14x6–16x10
RPM Range: 1600–9500
Fuel: 15% Nitromethane
Mounting Dimensions: 25 x 46mm
Muffler Type: Cast
Cylinder Type: Ring
Carb Type: Barrel, 2-needle
Crank Type: Ball bearing
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