In the end of the 19th century, electric bicycles were created but they don’t resemble the motorized bikes of today. in 1897, Hosea W. Libbey created an electric bicycle with a double electric motor. This is a predecessor to the hub kits of today, with a rear wheel axle powering it. This is still the same basic technology that powers many hub models today, with the popularity of such devices experiencing a resurge in the 1990’s, over a hundred years later. A rear wheel model using a driving belt was patented by Mathew Stephens around 1998. the rear wheel friction “roller-wheel” style drive electric bicycle also was birthed shortly before the 20th century but was later re-examined and expanded by G.A. Wood Jr. in the late 1960’s. this  device used 4 fractional horsepower motors that were gear-driven. In recent years, more powerful models than these are available to any person for a small price and run on small kits that are nowhere near as unwieldy as even some relatively recent products.

Torque sensors and power controls were even invented for motorized bicycles in the 1990’s, and still see popularity today. Nowadays, motor kits for bicycles use advanced technology like nickel cadmium batteries to create powerful energy without draining battery power, which was a larger issue only a decade or so ago. Up until about 1998, most people weren’t able to buy electric bicycles for common usage. One factor was price, because the technology to power these bicycles was not yet advanced enough to make cheaply and effectively. Around 1998, research helped to foster in a rebirth of the electric bicycle and within a year, over forty companies sold electric bicycles to the public, with the largest group of buyers in places like China and India, where overcrowding and urban areas lend themselves well to such a product. The sale of regular bicycles saw a decline in the mid 1990’s around the same time motorized bicycles entered the market as a viable option for many people. NiMH, NiCd and Li-ion batteries have replaced the lead and other unsuitable ingredients that were in older batteries, making the kits lighter, more effective, faster, and less expensive. This led to the boom that is being seen even today, with motorized bicycles once again becoming in vogue because of reasons like high gas prices and environmental concerns regarding automobiles.