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Abstract: Traffic congestion, energy conservation and environmental issues are fueling the interest in light electric vehicles. In particular, electric vehicles are compelling because of their low cost, ease of use, lightweight, and extremely small footprint. This project deals with design and fabrication of a low-cost portable electric bicycle kit which makes use of electric energy as the primary source and can be mounted on any non-geared bicycle. It has two modes of drive; one is manual i.e., by pedaling and the other one is electric by using electric power from a DC battery. The kit consists of 250W PMDC motor which is powered by a 24V Li-ion battery. One of the major disadvantages of traditional bicycle is that it increases rider’s fatigue during long distance travel. The electric bicycle provides a better riding experience as it runs on electric power thereby reducing the rider’s fatigue. This helps in travelling longer distances comfortably. The electric bicycle is also faster compared to a traditional bicycle. It is also an environment friendly means of transportation as it does not depend on fossil-fuels for energy. The expected range of the bicycle is around 30-35 km on a single charge and expected speed is 20 kmph