Kinetic energy recovery system (KERS) is a technology used in formula-1 cars for recovering the energy lost in braking of the car and thus providing boost to the vehicle motion. Same
concept i.e. regenerative braking can be applied in bicycle which uses a flywheel which will be mounted between the frames of the bicycle, the flywheel can store the braking energy by rotating and this energy can be given back to the system which will reduce the pedaling power required to drive
the bicycle.