Cooling head:
The cooling head of the PLUS 2 engines have some holes drilled in, to reduce the mass of this part.

Combustion chamber:
The combustion chamber is supported by an O-Ring which is placed between the combustion chamber and the crankcase to reduce the vibrations of the combustion chamber.

Crankshaft:
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by two inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration. The ball bearing was lowered to5mm. The front part was extended to improve the seal against fuel leaking.

Sleeve:
The sleeve has 9 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.

Crankcase:
The crankcase has a 3 porting system. The shape of these portings obtain the best possible mixture flow.

Rear Cover:
The rear cover presents a round shape to optimize the filling and reducing the dead spaces.
the steel plate is to expand the lifespan of the conrod.

Rear ball bearing:
The rear ball bearing has high quality ceramic balls to minimize wear and inertia to improve acceleration and fuel consumption.