What performance does OTR technology of Wuyang Honda Han Ying motorcycle engine refer to?

Otr refers to the deflection of the crankshaft. Generally, the crankshaft is directly below the piston, and the otr is slightly off the side, just like the explosive force of the piston will offset a little when pedaling a bicycle at the top, but in fact, it is because the inertia of the crankshaft passes through the top during the movement, and the otr is offset, and the piston explodes above the top to obtain more power.