IN IN166MU2014A
A propelling device for bicycles is disclosed that is integrable with a rear wheel of a bicycle. The propelling device includes a coil spring that is positioned on a rear wheel axle such that the spring is selectively wound while pedaling the bicycle in a reverse direction. The kinetic energy of reverse paddling is selectively stored in the spring. The energy stored in the coil spring is selectively released to propel the rear wheel of the bicycle. A clutch assembly facilitates storing the energy of reverse paddling in the coil spring during a charging cycle, A propelling assembly facilitates release of the potential energy stored in the coil spring during a propelling cycle to propel the bicycle. (FIG.1 for publication)
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