CMB Engines are Italian designed and manufactured racing engines and can reach peak preformance straight out of the box.
NEW 2014 spec 91 RS Evo ENGINE HAS A NEW CRANKCASE, FLAT TOP PISTON AND LINER WITH 5 INLETS AND 3 EXHAUST PORTS NEW LARGE DIAMETER CRANKSHAFT, FRONT HOUSING, WATER JACKET AND LARGER 13MM CARB.
6.8 HP / 26,000 RPM
Bore: 27.5 mm
Stroke: 25.2 mm
Displacement: 15.0 cc