Special factory assembled with M-Line/GPX 3 bearing crankshaft assembly, 91 M-Line piston/liner assembly with flat top piston, RS.3 black crankcase with single chamber water cooling jacket and 6 bolts, single plug Turbo head, 13mm Carburetor with Low End Needle Valve and R/C 3rd channel remote main needle valve.
-  7.0 HP / 27,000 RPM
-  Bore: 27.5 mm
-  Stroke: 25.2 mm
-  Displacement: 15.0 cc