CMB Engines are Italian designed and manufactured racing engines and can reach peak preformance straight out of the box.
NEW 2015 spec 91 RS Evo Engine. Has the new, improved Large Crankshaft and new front housing and bearing. The new EVO crankcase, Flat Top Piston and Liner with 5 inlets and 3 exhaust ports and larger diameter 13mm Carb. Designed to be used with a solid shaft.
6.8 HP / 26,000 RPM
Bore: 27.5 mm
Stroke: 25.2 mm
Displacement: 15.0 cc