The tried and true drivetrain of bicycles have evolved a lot over the years, but the dominant system still involves a derailleur that move s the chain from gear to gear on the rear wheel. There have been other attempts to “derail” the derailleur system, and one promising one is from Austrian-based Vyro, which could combines the benefits of a gearbox, chain guide, chain rings and derailleur systems.
It is still very much in development, and at present company founder Gregor Schuster is looking for funding to make this project a reality. It has much promise and could be one to watch. Read the rest of this entry »