How to Change Gears on a Trek Mountain Bike
- 1). Place thumbs onto the gear shift levers located on both handlebars. The left shifter controls the front derailleur, and the right shifter controls the rear derailleur.
- 2). Shift the rear derailleur to a higher gear ratio to increase torque when ascending steep inclines. Push the right shifter up--away from the body. The shift should be done on flat terrain before an ascent while the pedals and chain are in forward motion.
- 3). Shift the front derailleur up to the exact position of the rear derailleur to add greater torque when ascending inclines. Flip the left shifter up to match the placement of the right shifter. Reverse the process for descending hills.
- 4). Adjust the front and rear derailleur corresponding to your riding style while on inclines and declines. Each rider has a different level of physical fitness and strength, so it may take a while to find a gear combination that works best for you. Remember to change only one set of gears at a time until you feel the most comfort while pedaling. Wait until you reach level terrain to shift to avoid ruining gears.
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