Yeah, just quietly, quantum physics has nothing to do with motorbikes being faster than cars. Inertia doesnt have much to do with it either.

There is more inertia in the cars wheels than a bikes wheels, cause it has twice as many, but this has little to do with the reason why bikes are faster than cars.

The reason motorbikes are faster than cars is simply the fact that cars weigh around 1000-1600kg (in general) most bikes weigh about 1/10th of this. But they have between 1/5 (around) to the same amount of power as some cars. Thus they are alot faster.