Complex sentence: Though bicycles are a staple of transporting humans, in both rural and urbanised areas, bamboo bicycles are currently not widely introduced; however, with the advent of the Green movement, bamboo is being used again, primarily for high-end racing/touring bicycles.
Split into simpler sentences: Though bicycles are a staple of human transportation, in both rural and urbanised areas, bamboo bicycles are currently not widely used. However, with the advent of the Green movement, bamboo is being used again, primarily for high-end racing/touring bicycles.