The bicycle gear system works by sliding the shifter on the handlebars. A bicycle gear system involves Downshifting and Upshifting - Downshifting means going to a lower gear and Upshifting means going to a higher gear. This is also known as shift down and shift up #cycletrek #coimbatore #cyclestore #bicyclestore #gearsystem #herosprint #montra #firefox #ninetyonecycles #machcity #schnell #keysto #bsa #hercules #radiant #coimbatore