Specification:
- Displacement(c.c. / cu.in.): 5.98 c.c. / .365 cu.in. 
- Bore(mm / in.): 20.8 mm / 0.819 in.
- Stroke(mm / in.): 17.6 mm / 0.693 in. 
- Practical R.P.M.(R.P.M.): 2,000 ~ 17,000 rpm 
- Output(BHP/RPM): 1.10 BHP / 16,000 RPM 
- Weight(g/oz): 313.6 g / 11.06 oz

The PRO engine series feature aerospace-technology ball bearings for supporting the crankshaft at high RPM while the Schnuerle-boost combustion porting delivers greater power and fuel economy. The Pro Series engines are equipped with twin ball bearings, twin needles and ABN-type piston and cylinder for years of trouble-free performance.

All Pro Series engines deliver exceptional power-to-weight ratio and value, making them fantastic 2-stroke powerplants for model airplanes.

1.   Side exhaust
2.   ABN construction : Aluminum piston with Nickel-plated brass cylinder liner
3.   Hypereutectic machined Al-Si ringed piston
4.   High-strength connecting rod with bushings pre-installed
5.   One-piece crankcase with squared-off cooling fins
6.   Dual ball bearing-supported crankshaft
7.   Vertical fins heat sink head for optimum air cooling
8.   3- Chamber muffler included
9.   2 Needle valves carburetor
10. Swept back needle valve for added safety adjustment
11. State of the art CNC machined components
12. Redline R2 glow plug included