No longer available:Power, smooth running combined with low noise emission make the Irvine 25 R/C one of the best, most reliable, engines in its class.
The highly effective, twin chamber silencer is designed to keep noise levels to a minimum without sacrificing any power.
Displacement: 4.08cc 0.25cu. in.
Bore: 17.75mm 0.650in
Stroke: 16.5mm 0.488in.
Power Output: 0.9BHP
Practical RPM: 3,000~20,000
Weight: 260g 12.14oz