Traditional bicycle	Bicycle with new driving system
Transmission ratio can be adjusted by discrete steps.	Transmission ratio can be adjusted continuously or by fine discrete steps.
Speed control possible only during motion of the bicycle.	Speed control possible any time, not only during motion of the bicycle.
Adjusting the ratio of transmission under full power is not really possible.	Adjusting the ratio of transmission under full power is possible.
Asymmetric loading of the legs is not possible.	Asymmetric loading of the legs is possible.
Greasing is necessary.	Clean system, greasing is not necessary.
Almost unchanged form in the last several decades.	Brand-new, exciting driving system, may well become very fashionable