How to effectively use mountain bike shifters for a smooth ride
To use mountain bike shifters, place your hands on the handlebars and use your thumbs and index fingers to control the shifters. The left shifter controls the front derailleur, which shifts between the chainrings, while the right shifter controls the rear derailleur, which shifts between the cassette sprockets. Push the shifters away from you to shift to a harder gear and pull them toward you to shift to an easier gear. Practice shifting while riding on flat terrain and gradually move up to more challenging terrain.